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Full vulnerability report · 2026
CVE-2026-53275High confidence

ipv6: mcast: Fix use-after-free when processing MLD queries

Linux · Linux

8.8HighCVSS 3.1
Recommended action
Patch only the product branches with a verified fix

High technical severity; prioritise exposed affected systems while verifying vendor guidance. Verified remediation exists for at least one product or source, but 25 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityHighOperational priority:High, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • EPSS is 0.26% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict local access and enforce least privilege on affected hosts.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs Linux Linux and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: Within 30 daysRemediation target: Within 180 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Cross-source reconciliation

Remediation availability differs by product scope

Verified remediation exists for at least one product or source, but 25 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Distribution package intelligence

Release-specific package status

Debian, ubuntu findings are scoped to the named distribution, release and source package. An absent finding does not mean a package is unaffected.

24 package states
Package result overrides the generic status

BlackTree has verified remediation for at least one product or source, but the relevant distribution still reports no fixed package for 20 affected package states shown here. Treat those rows as affected with no fix until that distribution publishes a fixed version.

Repository candidate not checked

A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.

Distribution releaseSource packageVendor stateFixed versionEvidence
Debian trixietrixie · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.6.12.94-1Debian Security Tracker ↗Source updated 6 Oct 2026
Debian bookwormbookworm · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.6.1.176-1Debian Security Tracker ↗Source updated 6 Oct 2026
Debian forkyforky · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.7.0.13-1Debian Security Tracker ↗Source updated 6 Oct 2026
Debian sidsid · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.7.0.13-1Debian Security Tracker ↗Source updated 6 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinuxAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-awsAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-azureAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-azure-fdeAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-azure-nvidiaAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-gcpAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-gkeAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-gkeopAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-ibmAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-lowlatencyAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-nvidiaAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-nvidia-lowlatencyAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-nvidia-tegraAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-oem-6.11Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-oracleAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-raspiAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-raspi-realtimeAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-realtimeAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-riscvAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-xilinxAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

3 current
CVE-2026-53275 · CSAF 2.0 · revision 20 · interimSUSE Product Security TeamCVE-2026-53275
301 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • kernel-default as component of SUSE Linux Enterprise Desktop 15 SP7
  • kernel-default-extra as component of SUSE Linux Enterprise Desktop 15 SP7
  • kernel-source as component of SUSE Linux Enterprise Desktop 15 SP7
  • cluster-md-kmp-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7
  • dlm-kmp-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7
  • gfs2-kmp-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7
  • kernel-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7
  • kernel-source as component of SUSE Linux Enterprise High Availability Extension 15 SP7
  • ocfs2-kmp-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7
  • kernel-default as component of SUSE Linux Enterprise High Performance Computing 12 SP4
  • kernel-default-base as component of SUSE Linux Enterprise High Performance Computing 12 SP4
  • kernel-default-devel as component of SUSE Linux Enterprise High Performance Computing 12 SP4
Summary
In the Linux kernel, the following vulnerability has been resolved: ipv6: mcast: Fix use-after-free when processing MLD queries When processing an MLD query, a pointer to the multicast group address is retrieved when initially parsing the packet. This pointer is later dereferenced without being reloaded despite the fact that the skb header might have been reallocated following the pskb_may_pull() calls, leading to a use-after-free [1]. Fix by copying the multicast group address when the packet is initially parsed. [1] BUG: KASAN: slab-use-after-free in __mld_query_work (net/ipv6/mcast.c:1512) Read of size 8 at addr ffff8881154b8e90 by task kworker/4:1/118 Workqueue: mld mld_query_work Call Trace: dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) print_address_description.constprop.0 (mm/kasan/report.c:378) print_report (mm/kasan/report.c:482) kasan_report (mm/kasan/report.c:595) __mld_query_work (net/ipv6/mcast.c:1512) mld_query_work (net/ipv6/mcast.c:1563) process_one_work (kernel/workqueue.c:3314) worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478) kthread (kernel/kthread.c:436) ret_from_fork (arch/x86/kernel/process.c:158) ret_from_fork_asm (arch/x86/entry/entry_64.S:245) [...] Freed by task 118: kasan_save_stack (mm/kasan/common.c:57) kasan_save_track (mm/kasan/common.c:78) kasan_save_free_info (mm/kasan/generic.c:584) __kasan_slab_free (mm/kasan/common.c:253 mm/kasan/common.c:285) kfree (./include/linux/kasan.h:235 mm/slub.c:2689 mm/slub.c:6251 mm/slub.c:6566) pskb_expand_head (net/core/skbuff.c:2335) __pskb_pull_tail (net/core/skbuff.c:2878 (discriminator 4)) __mld_query_work (net/ipv6/mcast.c:1495 (discriminator 1)) mld_query_work (net/ipv6/mcast.c:1563) process_one_work (kernel/workqueue.c:3314) worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478) kthread (kernel/kthread.c:436) ret_from_fork (arch/x86/kernel/process.c:158) ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
Remediation
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
CVE-2026-53275 · CSAF 2.0 · revision 3 · finalRed Hat Product Securitykernel: ipv6: mcast: Fix use-after-free when processing MLD queries
64 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • kernel as a component of Red Hat Enterprise Linux 6
  • kernel-abi-whitelists as a component of Red Hat Enterprise Linux 6
  • kernel-bootwrapper as a component of Red Hat Enterprise Linux 6
  • kernel-debug as a component of Red Hat Enterprise Linux 6
  • kernel-debug-devel as a component of Red Hat Enterprise Linux 6
  • kernel-devel as a component of Red Hat Enterprise Linux 6
  • kernel-doc as a component of Red Hat Enterprise Linux 6
  • kernel-firmware as a component of Red Hat Enterprise Linux 6
  • kernel-headers as a component of Red Hat Enterprise Linux 6
  • kernel-kdump as a component of Red Hat Enterprise Linux 6
  • kernel-kdump-devel as a component of Red Hat Enterprise Linux 6
  • kernel.src as a component of Red Hat Enterprise Linux 6
Summary
A flaw was found in the Linux kernel's IPv6 multicast (mcast) component. When processing Multicast Listener Discovery (MLD) queries, a pointer to the multicast group address is not correctly reloaded after certain packet manipulations. This can lead to a use-after-free vulnerability, potentially allowing an attacker to cause a denial of service or achieve arbitrary code execution.
Remediation
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. Red Hat recommends treating all kernel errata as security-relevant. Given the kernel's fundamental role, any bug has a higher chance of impacting system security, even if that impact only becomes clear after a fix is published. Therefore, Red Hat prioritizes delivering fixes that improve our customers' overall security posture. Because of this proactive approach, a patch may be associated with a CVE assignment at a future date. Retroactive CVE assignments are always documented in the corresponding errata and on Red Hat's CVE pages. We strongly advise against delaying updates, as doing so may leave your system exposed when protections are already available.
SSA-019113 · CSAF 2.0 · revision 2 · interimSiemens ProductCERTSSA-019113: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP V3.1.6
5 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0) >= V3.1.6
  • SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0) >= V3.1.6
  • SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0) >= V3.1.6
  • SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0) >= V3.1.6
  • SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0) >= V3.1.6
Summary
In the Linux kernel, the following vulnerability has been resolved: ipv6: mcast: Fix use-after-free when processing MLD queries When processing an MLD query, a pointer to the multicast group address is retrieved when initially parsing the packet. This pointer is later dereferenced without being reloaded despite the fact that the skb header might have been reallocated following the pskb_may_pull() calls, leading to a use-after-free [1]. Fix by copying the multicast group address when the packet is initially parsed. [1] BUG: KASAN: slab-use-after-free in __mld_query_work (net/ipv6/mcast.c:1512) Read of size 8 at addr ffff8881154b8e90 by task kworker/4:1/118 Workqueue: mld mld_query_work Call Trace: dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) print_address_description.constprop.0 (mm/kasan/report.c:378) print_report (mm/kasan/report.c:482) kasan_report (mm/kasan/report.c:595) __mld_query_work (net/ipv6/mcast.c:1512) mld_query_work (net/ipv6/mcast.c:1563) process_one_work (kernel/workqueue.c:3314) worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478) kthread (kernel/kthread.c:436) ret_from_fork (arch/x86/kernel/process.c:158) ret_from_fork_asm (arch/x86/entry/entry_64.S:245) [...] Freed by task 118: kasan_save_stack (mm/kasan/common.c:57) kasan_save_track (mm/kasan/common.c:78) kasan_save_free_info (mm/kasan/generic.c:584) __kasan_slab_free (mm/kasan/common.c:253 mm/kasan/common.c:285) kfree (./include/linux/kasan.h:235 mm/slub.c:2689 mm/slub.c:6251 mm/slub.c:6566) pskb_expand_head (net/core/skbuff.c:2335) __pskb_pull_tail (net/core/skbuff.c:2878 (discriminator 4)) __mld_query_work (net/ipv6/mcast.c:1495 (discriminator 1)) mld_query_work (net/ipv6/mcast.c:1563) process_one_work (kernel/workqueue.c:3314) worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478) kthread (kernel/kthread.c:436) ret_from_fork (arch/x86/kernel/process.c:158) ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
Remediation
Limit access to the interactive shell of the additional GNU/Linux subssytem to trusted personnel only.
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2026-39226

No EUVD known-exploited evidence

In the Linux kernel, the following vulnerability has been resolved: ipv6: mcast: Fix use-after-free when processing MLD queries When processing an MLD query, a pointer to the multicast group address is retrieved when initially parsing the packet. This pointer is later dereferenced without being reloaded despite the fact that the skb header might have been reallocated following the pskb_may_pull() calls, leading to a use-after-free [1]. Fix by copying the multicast group address when the packet is initially parsed. [1] BUG: KASAN: slab-use-after-free in __mld_query_work (net/ipv6/mcast.c:1512) Read of size 8 at addr ffff8881154b8e90 by task kworker/4:1/118 Workqueue: mld mld_query_work Call Trace: <TASK> dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) print_address_description.constprop.0 (mm/kasan/report.c:378) print_report (mm/kasan/report.c:482) kasan_report (mm/kasan/report.c:595) __mld_query_work (net/ipv6/mcast.c:1512) mld_query_work (net/ipv6/mcast.c:1563) process_one_work (kernel/workqueue.c:3314) worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478) kthread (kernel/kthread.c:436) ret_from_fork (arch/x86/kernel/process.c:158) ret_from_fork_asm (arch/x86/entry/entry_64.S:245) </TASK> [...] Freed by task 118: kasan_save_stack (mm/kasan/common.c:57) kasan_save_track (mm/kasan/common.c:78) kasan_save_free_info (mm/kasan/generic.c:584) __kasan_slab_free (mm/kasan/common.c:253 mm/kasan/common.c:285) kfree (./include/linux/kasan.h:235 mm/slub.c:2689 mm/slub.c:6251 mm/slub.c:6566) pskb_expand_head (net/core/skbuff.c:2335) __pskb_pull_tail (net/core/skbuff.c:2878 (discriminator 4)) __mld_query_work (net/ipv6/mcast.c:1495 (discriminator 1)) mld_query_work (net/ipv6/mcast.c:1563) process_one_work (kernel/workqueue.c:3314) worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478) kthread (kernel/kthread.c:436) ret_from_fork (arch/x86/kernel/process.c:158) ret_from_fork_asm (arch/x86/entry/entry_64.S:245)

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
8.8 · CVSS 3.1
Advisory evidence
No linked advisory details stored yet
Recommended actionPatch only the product branches with a verified fix

High technical severity; prioritise exposed affected systems while verifying vendor guidance. Verified remediation exists for at least one product or source, but 25 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
01

What, why and how

In the Linux kernel, the following vulnerability has been resolved: ipv6: mcast: Fix use-after-free when processing MLD queries When processing an MLD query, a pointer to the multicast group address is retrieved when initially parsing the packet. This pointer is later dereferenced without being reloaded despite the fact that the skb header might have been reallocated following the pskb_may_pull() calls, leading to a use-after-free [1]. Fix by copying the multicast group address when the packet is initially parsed. [1] BUG: KASAN: slab-use-after-free in __mld_query_work (net/ipv6/mcast.c:1512) Read of size 8 at addr ffff8881154b8e90 by task kworker/4:1/118 Workqueue: mld mld_query_work Call Trace: <TASK> dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) print_address_description.constprop.0 (mm/kasan/report.c:378) print_report (mm/kasan/report.c:482) kasan_report (mm/kasan/report.c:595) __mld_query_work (net/ipv6/mcast.c:1512) mld_query_work (net/ipv6/mcast.c:1563) process_one_work (kernel/workqueue.c:3314) worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478) kthread (kernel/kthread.c:436) ret_from_fork (arch/x86/kernel/process.c:158) ret_from_fork_asm (arch/x86/entry/entry_64.S:245) </TASK> [...] Freed by task 118: kasan_save_stack (mm/kasan/common.c:57) kasan_save_track (mm/kasan/common.c:78) kasan_save_free_info (mm/kasan/generic.c:584) __kasan_slab_free (mm/kasan/common.c:253 mm/kasan/common.c:285) kfree (./include/linux/kasan.h:235 mm/slub.c:2689 mm/slub.c:6251 mm/slub.c:6566) pskb_expand_head (net/core/skbuff.c:2335) __pskb_pull_tail (net/core/skbuff.c:2878 (discriminator 4)) __mld_query_work (net/ipv6/mcast.c:1495 (discriminator 1)) mld_query_work (net/ipv6/mcast.c:1563) process_one_work (kernel/workqueue.c:3314) worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478) kthread (kernel/kthread.c:436) ret_from_fork (arch/x86/kernel/process.c:158) ret_from_fork_asm (arch/x86/entry/entry_64.S:245)

What

In the Linux kernel, the following vulnerability has been resolved: ipv6: mcast: Fix use-after-free when processing MLD queries When processing an MLD query, a pointer to the multicast group address is retrieved when initially parsing the packet. This pointer is later dereferenced without being reloaded despite the fact that the skb header might have been reallocated following the pskb_may_pull() calls, leading to a use-after-free [1]. Fix by copying the multicast group address when the packet is initially parsed. [1] BUG: KASAN: slab-use-after-free in __mld_query_work (net/ipv6/mcast.c:1512) Read of size 8 at addr ffff8881154b8e90 by task kworker/4:1/118 Workqueue: mld mld_query_work Call Trace: <TASK> dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) print_address_description.constprop.0 (mm/kasan/report.c:378) print_report (mm/kasan/report.c:482) kasan_report (mm/kasan/report.c:595) __mld_query_work (net/ipv6/mcast.c:1512) mld_query_work (net/ipv6/mcast.c:1563) process_one_work (kernel/workqueue.c:3314) worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478) kthread (kernel/kthread.c:436) ret_from_fork (arch/x86/kernel/process.c:158) ret_from_fork_asm (arch/x86/entry/entry_64.S:245) </TASK> [...] Freed by task 118: kasan_save_stack (mm/kasan/common.c:57) kasan_save_track (mm/kasan/common.c:78) kasan_save_free_info (mm/kasan/generic.c:584) __kasan_slab_free (mm/kasan/common.c:253 mm/kasan/common.c:285) kfree (./include/linux/kasan.h:235 mm/slub.c:2689 mm/slub.c:6251 mm/slub.c:6566) pskb_expand_head (net/core/skbuff.c:2335) __pskb_pull_tail (net/core/skbuff.c:2878 (discriminator 4)) __mld_query_work (net/ipv6/mcast.c:1495 (discriminator 1)) mld_query_work (net/ipv6/mcast.c:1563) process_one_work (kernel/workqueue.c:3314) worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478) kthread (kernel/kthread.c:436) ret_from_fork (arch/x86/kernel/process.c:158) ret_from_fork_asm (arch/x86/entry/entry_64.S:245)

Why

The program can continue using memory after it has been released, producing unsafe and attacker-influenceable behaviour.

How

An attacker operating through an adjacent network may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

In the Linux kernel, the following vulnerability has been resolved: ipv6: mcast: Fix use-after-free when processing MLD queries When processing an MLD query, a pointer to the multicast group address is retrieved when initially parsing the packet. This pointer is later dereferenced without being reloaded despite the fact that the skb header might have been reallocated following the pskb_may_pull() calls, leading to a use-after-free [1]. Fix by copying the multicast group address when the packet is initially parsed. [1] BUG: KASAN: slab-use-after-free in __mld_query_work (net/ipv6/mcast.c:1512) Read of size 8 at addr ffff8881154b8e90 by task kworker/4:1/118 Workqueue: mld mld_query_work Call Trace: <TASK> dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) print_address_description.constprop.0 (mm/kasan/report.c:378) print_report (mm/kasan/report.c:482) kasan_report (mm/kasan/report.c:595) __mld_query_work (net/ipv6/mcast.c:1512) mld_query_work (net/ipv6/mcast.c:1563) process_one_work (kernel/workqueue.c:3314) worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478) kthread (kernel/kthread.c:436) ret_from_fork (arch/x86/kernel/process.c:158) ret_from_fork_asm (arch/x86/entry/entry_64.S:245) </TASK> [...] Freed by task 118: kasan_save_stack (mm/kasan/common.c:57) kasan_save_track (mm/kasan/common.c:78) kasan_save_free_info (mm/kasan/generic.c:584) __kasan_slab_free (mm/kasan/common.c:253 mm/kasan/common.c:285) kfree (./include/linux/kasan.h:235 mm/slub.c:2689 mm/slub.c:6251 mm/slub.c:6566) pskb_expand_head (net/core/skbuff.c:2335) __pskb_pull_tail (net/core/skbuff.c:2878 (discriminator 4)) __mld_query_work (net/ipv6/mcast.c:1495 (discriminator 1)) mld_query_work (net/ipv6/mcast.c:1563) process_one_work (kernel/workqueue.c:3314) worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478) kthread (kernel/kthread.c:436) ret_from_fork (arch/x86/kernel/process.c:158) ret_from_fork_asm (arch/x86/entry/entry_64.S:245)

Why

The program can continue using memory after it has been released, producing unsafe and attacker-influenceable behaviour.

How

An attacker operating through an adjacent network may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
an adjacent network → Use After Free → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Adjacent
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-416 ↗

CWE-416: Use After Free. The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory belongs to the code that operates on the new pointer.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVAdjacentAttack vector: The attacker must be on an adjacent or logically close network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
UnauthenticatedCWE-416
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

ENISA EUVD · EUVD-2026-39226Official EUVD mapping

In the Linux kernel, the following vulnerability has been resolved: ipv6: mcast: Fix use-after-free when processing MLD queries When processing an MLD query, a pointer to the multicast group address is retrieved when initially parsing the packet. This pointer is later dereferenced without being reloaded despite the fact that the skb header might have been reallocated following the pskb_may_pull() calls, leading to a use-after-free [1]. Fix by copying the multicast group address when the packet is initially parsed. [1] BUG: KASAN: slab-use-after-free in __mld_query_work (net/ipv6/mcast.c:1512) Read of size 8 at addr ffff8881154b8e90 by task kworker/4:1/118 Workqueue: mld mld_query_work Call Trace: <TASK> dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) print_address_description.constprop.0 (mm/kasan/report.c:378) print_report (mm/kasan/report.c:482) kasan_report (mm/kasan/report.c:595) __mld_query_work (net/ipv6/mcast.c:1512) mld_query_work (net/ipv6/mcast.c:1563) process_one_work (kernel/workqueue.c:3314) worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478) kthread (kernel/kthread.c:436) ret_from_fork (arch/x86/kernel/process.c:158) ret_from_fork_asm (arch/x86/entry/entry_64.S:245) </TASK> [...] Freed by task 118: kasan_save_stack (mm/kasan/common.c:57) kasan_save_track (mm/kasan/common.c:78) kasan_save_free_info (mm/kasan/generic.c:584) __kasan_slab_free (mm/kasan/common.c:253 mm/kasan/common.c:285) kfree (./include/linux/kasan.h:235 mm/slub.c:2689 mm/slub.c:6251 mm/slub.c:6566) pskb_expand_head (net/core/skbuff.c:2335) __pskb_pull_tail (net/core/skbuff.c:2878 (discriminator 4)) __mld_query_work (net/ipv6/mcast.c:1495 (discriminator 1)) mld_query_work (net/ipv6/mcast.c:1563) process_one_work (kernel/workqueue.c:3314) worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478) kthread (kernel/kthread.c:436) ret_from_fork (arch/x86/kernel/process.c:158) ret_from_fork_asm (arch/x86/entry/entry_64.S:245)

Official EUVD record ↗
BSI · German · WID-SEC-2026-2077Linux Kernel: Mehrere Schwachstellen

Ein entfernter Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um Sicherheitsvorkehrungen zu umgehen, einen Denial-of-Service-Zustand herbeizuführen und weitere, nicht näher spezifizierte Auswirkungen zu erzielen.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20260701Security Bulletin 1 July 2026

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 1 July 2026, published on 1 July 2026. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1252Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-53266 Référence CVE CVE-2026-53267 https://www.cve.org/CVERecord?id=CVE-2026-53267 Référence CVE CVE-2026-53268 https://www.cve.org/CVERecord?id=CVE-2026-53268 Référence CVE CVE-2026-53269 https://www.cve.org/CVERecord?id=CVE-2026-53269 Référence CVE CVE-2026-53270 https://www.cve.org/CVERecord?id=CVE-2026-53270 Référence CVE CVE-2026-53271 https://www.cve.org/CVERecord?id=CVE-2026-53271 Référence CVE CVE-2026-53272 https://www.cve.org/CVERecord?id=CVE-2026-53272 Référence CVE CVE-2026-53273 https://www.cve.org/CVERecord?id=CVE-2026-53273 Référence CVE CVE-2026-53274 https://www.cve.org/CVERecord?id=CVE-2026-53274 Référence CVE CVE-2026-53275 https://www.cve.org/CVERecord?id=CVE-2026-53275 Référence CVE CVE-2026-53276 https://www.cve.org/CVERecord?id=CVE-2026-53276 Référence CVE CVE-2026-53277 https://www.cve.org/CVERecord?id=CVE-2026-53277 Référence CVE CVE-2026-53278 https://www.cve.org/CVERecord?id=CVE-2026-53278 Référence CVE CVE-2026-53279 https://www.cve.org/CVERecord?id=CVE-2026-53279 Référence CVE CVE-2026-53280 https://www.cve.org/CVERecord?id=CVE-2026-53280 Référence CVE CVE-2026-53281 https://www.cve.org/CVERecord?id=CVE-2026-53281 Référence CVE CVE-2026-53282 https://www.cve.org/CVERecord?id=CVE-2026-53282 Référence CVE CVE-2026-53283 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1229Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-53266 Référence CVE CVE-2026-53267 https://www.cve.org/CVERecord?id=CVE-2026-53267 Référence CVE CVE-2026-53268 https://www.cve.org/CVERecord?id=CVE-2026-53268 Référence CVE CVE-2026-53269 https://www.cve.org/CVERecord?id=CVE-2026-53269 Référence CVE CVE-2026-53270 https://www.cve.org/CVERecord?id=CVE-2026-53270 Référence CVE CVE-2026-53271 https://www.cve.org/CVERecord?id=CVE-2026-53271 Référence CVE CVE-2026-53272 https://www.cve.org/CVERecord?id=CVE-2026-53272 Référence CVE CVE-2026-53273 https://www.cve.org/CVERecord?id=CVE-2026-53273 Référence CVE CVE-2026-53274 https://www.cve.org/CVERecord?id=CVE-2026-53274 Référence CVE CVE-2026-53275 https://www.cve.org/CVERecord?id=CVE-2026-53275 Référence CVE CVE-2026-53276 https://www.cve.org/CVERecord?id=CVE-2026-53276 Référence CVE CVE-2026-53277 https://www.cve.org/CVERecord?id=CVE-2026-53277 Référence CVE CVE-2026-53278 https://www.cve.org/CVERecord?id=CVE-2026-53278 Référence CVE CVE-2026-53279 https://www.cve.org/CVERecord?id=CVE-2026-53279 Référence CVE CVE-2026-53280 https://www.cve.org/CVERecord?id=CVE-2026-53280 Référence CVE CVE-2026-53281 https://www.cve.org/CVERecord?id=CVE-2026-53281 Référence CVE CVE-2026-53282 https://www.cve.org/CVERecord?id=CVE-2026-53282 Référence CVE CVE-2026-53283 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1203Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-53266 Référence CVE CVE-2026-53267 https://www.cve.org/CVERecord?id=CVE-2026-53267 Référence CVE CVE-2026-53268 https://www.cve.org/CVERecord?id=CVE-2026-53268 Référence CVE CVE-2026-53269 https://www.cve.org/CVERecord?id=CVE-2026-53269 Référence CVE CVE-2026-53270 https://www.cve.org/CVERecord?id=CVE-2026-53270 Référence CVE CVE-2026-53271 https://www.cve.org/CVERecord?id=CVE-2026-53271 Référence CVE CVE-2026-53272 https://www.cve.org/CVERecord?id=CVE-2026-53272 Référence CVE CVE-2026-53273 https://www.cve.org/CVERecord?id=CVE-2026-53273 Référence CVE CVE-2026-53274 https://www.cve.org/CVERecord?id=CVE-2026-53274 Référence CVE CVE-2026-53275 https://www.cve.org/CVERecord?id=CVE-2026-53275 Référence CVE CVE-2026-53276 https://www.cve.org/CVERecord?id=CVE-2026-53276 Référence CVE CVE-2026-53281 https://www.cve.org/CVERecord?id=CVE-2026-53281 Référence CVE CVE-2026-53284 https://www.cve.org/CVERecord?id=CVE-2026-53284 Référence CVE CVE-2026-53309 https://www.cve.org/CVERecord?id=CVE-2026-53309 Référence CVE CVE-2026-53325 https://www.cve.org/CVERecord?id=CVE-2026-53325 Référence CVE CVE-2026-53326 https://www.cve.org/CVERecord?id=CVE-2026-53326 Référence CVE CVE-2026-53327 https://www.cve.org/CVERecord?id=CVE-2026-53327 Référence CVE CVE-2026-53328 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1204Multiples vulnérabilités dans le noyau Linux de Red Hat

d?id=CVE-2026-53182 Référence CVE CVE-2026-53192 https://www.cve.org/CVERecord?id=CVE-2026-53192 Référence CVE CVE-2026-53193 https://www.cve.org/CVERecord?id=CVE-2026-53193 Référence CVE CVE-2026-53196 https://www.cve.org/CVERecord?id=CVE-2026-53196 Référence CVE CVE-2026-53223 https://www.cve.org/CVERecord?id=CVE-2026-53223 Référence CVE CVE-2026-53228 https://www.cve.org/CVERecord?id=CVE-2026-53228 Référence CVE CVE-2026-53239 https://www.cve.org/CVERecord?id=CVE-2026-53239 Référence CVE CVE-2026-53246 https://www.cve.org/CVERecord?id=CVE-2026-53246 Référence CVE CVE-2026-53268 https://www.cve.org/CVERecord?id=CVE-2026-53268 Référence CVE CVE-2026-53275 https://www.cve.org/CVERecord?id=CVE-2026-53275 Référence CVE CVE-2026-53361 https://www.cve.org/CVERecord?id=CVE-2026-53361 Référence CVE CVE-2026-63802 https://www.cve.org/CVERecord?id=CVE-2026-63802 Référence CVE CVE-2026-63869 https://www.cve.org/CVERecord?id=CVE-2026-63869 Référence CVE CVE-2026-63886 https://www.cve.org/CVERecord?id=CVE-2026-63886 Référence CVE CVE-2026-63887 https://www.cve.org/CVERecord?id=CVE-2026-63887 Référence CVE CVE-2026-63888 https://www.cve.org/CVERecord?id=CVE-2026-63888 Référence CVE CVE-2026-63889 https://www.cve.org/CVERecord?id=CVE-2026-63889 Référence CVE CVE-2026-63917 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1162Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-53266 Référence CVE CVE-2026-53267 https://www.cve.org/CVERecord?id=CVE-2026-53267 Référence CVE CVE-2026-53268 https://www.cve.org/CVERecord?id=CVE-2026-53268 Référence CVE CVE-2026-53269 https://www.cve.org/CVERecord?id=CVE-2026-53269 Référence CVE CVE-2026-53270 https://www.cve.org/CVERecord?id=CVE-2026-53270 Référence CVE CVE-2026-53271 https://www.cve.org/CVERecord?id=CVE-2026-53271 Référence CVE CVE-2026-53272 https://www.cve.org/CVERecord?id=CVE-2026-53272 Référence CVE CVE-2026-53273 https://www.cve.org/CVERecord?id=CVE-2026-53273 Référence CVE CVE-2026-53274 https://www.cve.org/CVERecord?id=CVE-2026-53274 Référence CVE CVE-2026-53275 https://www.cve.org/CVERecord?id=CVE-2026-53275 Référence CVE CVE-2026-53276 https://www.cve.org/CVERecord?id=CVE-2026-53276 Référence CVE CVE-2026-53277 https://www.cve.org/CVERecord?id=CVE-2026-53277 Référence CVE CVE-2026-53278 https://www.cve.org/CVERecord?id=CVE-2026-53278 Référence CVE CVE-2026-53279 https://www.cve.org/CVERecord?id=CVE-2026-53279 Référence CVE CVE-2026-53280 https://www.cve.org/CVERecord?id=CVE-2026-53280 Référence CVE CVE-2026-53281 https://www.cve.org/CVERecord?id=CVE-2026-53281 Référence CVE CVE-2026-53282 https://www.cve.org/CVERecord?id=CVE-2026-53282 Référence CVE CVE-2026-53283 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1091Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-53236 Référence CVE CVE-2026-53246 https://www.cve.org/CVERecord?id=CVE-2026-53246 Référence CVE CVE-2026-53250 https://www.cve.org/CVERecord?id=CVE-2026-53250 Référence CVE CVE-2026-53252 https://www.cve.org/CVERecord?id=CVE-2026-53252 Référence CVE CVE-2026-53256 https://www.cve.org/CVERecord?id=CVE-2026-53256 Référence CVE CVE-2026-53262 https://www.cve.org/CVERecord?id=CVE-2026-53262 Référence CVE CVE-2026-53265 https://www.cve.org/CVERecord?id=CVE-2026-53265 Référence CVE CVE-2026-53267 https://www.cve.org/CVERecord?id=CVE-2026-53267 Référence CVE CVE-2026-53270 https://www.cve.org/CVERecord?id=CVE-2026-53270 Référence CVE CVE-2026-53275 https://www.cve.org/CVERecord?id=CVE-2026-53275 Référence CVE CVE-2026-53289 https://www.cve.org/CVERecord?id=CVE-2026-53289 Référence CVE CVE-2026-53291 https://www.cve.org/CVERecord?id=CVE-2026-53291 Référence CVE CVE-2026-53297 https://www.cve.org/CVERecord?id=CVE-2026-53297 Référence CVE CVE-2026-53321 https://www.cve.org/CVERecord?id=CVE-2026-53321 Référence CVE CVE-2026-53324 https://www.cve.org/CVERecord?id=CVE-2026-53324 Référence CVE CVE-2026-53331 https://www.cve.org/CVERecord?id=CVE-2026-53331 Référence CVE CVE-2026-53332 https://www.cve.org/CVERecord?id=CVE-2026-53332 Référence CVE CVE-2026-53345 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1064Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-53254 Référence CVE CVE-2026-53255 https://www.cve.org/CVERecord?id=CVE-2026-53255 Référence CVE CVE-2026-53256 https://www.cve.org/CVERecord?id=CVE-2026-53256 Référence CVE CVE-2026-53260 https://www.cve.org/CVERecord?id=CVE-2026-53260 Référence CVE CVE-2026-53265 https://www.cve.org/CVERecord?id=CVE-2026-53265 Référence CVE CVE-2026-53267 https://www.cve.org/CVERecord?id=CVE-2026-53267 Référence CVE CVE-2026-53268 https://www.cve.org/CVERecord?id=CVE-2026-53268 Référence CVE CVE-2026-53270 https://www.cve.org/CVERecord?id=CVE-2026-53270 Référence CVE CVE-2026-53273 https://www.cve.org/CVERecord?id=CVE-2026-53273 Référence CVE CVE-2026-53275 https://www.cve.org/CVERecord?id=CVE-2026-53275 Référence CVE CVE-2026-53277 https://www.cve.org/CVERecord?id=CVE-2026-53277 Référence CVE CVE-2026-53279 https://www.cve.org/CVERecord?id=CVE-2026-53279 Référence CVE CVE-2026-53289 https://www.cve.org/CVERecord?id=CVE-2026-53289 Référence CVE CVE-2026-53293 https://www.cve.org/CVERecord?id=CVE-2026-53293 Référence CVE CVE-2026-53297 https://www.cve.org/CVERecord?id=CVE-2026-53297 Référence CVE CVE-2026-53313 https://www.cve.org/CVERecord?id=CVE-2026-53313 Référence CVE CVE-2026-53317 https://www.cve.org/CVERecord?id=CVE-2026-53317 Référence CVE CVE-2026-53318 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1029Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-53254 Référence CVE CVE-2026-53255 https://www.cve.org/CVERecord?id=CVE-2026-53255 Référence CVE CVE-2026-53256 https://www.cve.org/CVERecord?id=CVE-2026-53256 Référence CVE CVE-2026-53260 https://www.cve.org/CVERecord?id=CVE-2026-53260 Référence CVE CVE-2026-53262 https://www.cve.org/CVERecord?id=CVE-2026-53262 Référence CVE CVE-2026-53267 https://www.cve.org/CVERecord?id=CVE-2026-53267 Référence CVE CVE-2026-53268 https://www.cve.org/CVERecord?id=CVE-2026-53268 Référence CVE CVE-2026-53270 https://www.cve.org/CVERecord?id=CVE-2026-53270 Référence CVE CVE-2026-53273 https://www.cve.org/CVERecord?id=CVE-2026-53273 Référence CVE CVE-2026-53275 https://www.cve.org/CVERecord?id=CVE-2026-53275 Référence CVE CVE-2026-53297 https://www.cve.org/CVERecord?id=CVE-2026-53297 Référence CVE CVE-2026-53306 https://www.cve.org/CVERecord?id=CVE-2026-53306 Référence CVE CVE-2026-53324 https://www.cve.org/CVERecord?id=CVE-2026-53324 Référence CVE CVE-2026-53325 https://www.cve.org/CVERecord?id=CVE-2026-53325 Référence CVE CVE-2026-53354 https://www.cve.org/CVERecord?id=CVE-2026-53354 Référence CVE CVE-2026-53355 https://www.cve.org/CVERecord?id=CVE-2026-53355 Référence CVE CVE-2026-53357 https://www.cve.org/CVERecord?id=CVE-2026-53357 Référence CVE CVE-2026-53359 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0862Multiples vulnérabilités dans le noyau Linux de Debian LTS

d?id=CVE-2026-53256 Référence CVE CVE-2026-53263 https://www.cve.org/CVERecord?id=CVE-2026-53263 Référence CVE CVE-2026-53264 https://www.cve.org/CVERecord?id=CVE-2026-53264 Référence CVE CVE-2026-53266 https://www.cve.org/CVERecord?id=CVE-2026-53266 Référence CVE CVE-2026-53268 https://www.cve.org/CVERecord?id=CVE-2026-53268 Référence CVE CVE-2026-53269 https://www.cve.org/CVERecord?id=CVE-2026-53269 Référence CVE CVE-2026-53270 https://www.cve.org/CVERecord?id=CVE-2026-53270 Référence CVE CVE-2026-53273 https://www.cve.org/CVERecord?id=CVE-2026-53273 Référence CVE CVE-2026-53274 https://www.cve.org/CVERecord?id=CVE-2026-53274 Référence CVE CVE-2026-53275 https://www.cve.org/CVERecord?id=CVE-2026-53275 Référence CVE CVE-2026-53279 https://www.cve.org/CVERecord?id=CVE-2026-53279 Référence CVE CVE-2026-53287 https://www.cve.org/CVERecord?id=CVE-2026-53287 Référence CVE CVE-2026-53289 https://www.cve.org/CVERecord?id=CVE-2026-53289 Référence CVE CVE-2026-53291 https://www.cve.org/CVERecord?id=CVE-2026-53291 Référence CVE CVE-2026-53294 https://www.cve.org/CVERecord?id=CVE-2026-53294 Référence CVE CVE-2026-53295 https://www.cve.org/CVERecord?id=CVE-2026-53295 Référence CVE CVE-2026-53296 https://www.cve.org/CVERecord?id=CVE-2026-53296 Référence CVE CVE-2026-53303 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0812Multiples vulnérabilités dans Microsoft Azure Linux

ulletin de sécurité Microsoft CVE-2026-53254 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53255 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53263 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53264 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53265 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53266 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53267 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53268 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53270 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53274 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53275 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-55200 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-9675 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-9697 du 27 juin 2026 Une gestion de version détaillée se trouve à la fin de ce document. Risque Non spécifié par l'éditeur Systèmes affectés azl3 kernel 6.6.141.1-1 versions antérieures à 6.6.143.1-1 azl3 libssh2 1.11.1-2 versions antérieures à 1.11.1-3 azl3 libssh2 1.11.1-3 versions antérieures à 1.11.1-3 azl3 nodejs 24.14.1-3 versions antérieures à 24.17.0-1 Résumé De multiples vulnérabilités ont été découvertes dans Microsoft Azure Linux. Elles permettent à un at

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-022866LinuxのLinux Kernelにおける解放済みメモリの使用に関する脆弱性

Linuxカーネルにおいて、以下の脆弱性が修正されました。ipv6: mcast: MLDクエリ処理時のuse-after-freeの問題です。MLDクエリを処理する際、パケットの初期解析時にマルチキャストグループアドレスへのポインタが取得されます。このポインタは、その後pskb_may_pull()の呼び出しによってskbヘッダーが再割り当てされている可能性があるにもかかわらず、再ロードされずに逆参照されるため、use-after-freeが発生します[1]。この問題は、パケットの初期解析時にマルチキャストグループアドレスをコピーすることで修正されました。[1]BUG: KASAN: slab-use-after-freeが__mld_query_work (net/ipv6/mcast.c:1512)にて発生しました。タスクkworker/4:1/118によるアドレスffff8881154b8e90（サイズ8）の読み取りが行われました。作業キューはmld_query_workです。コールトレースは以下の通りです。＜TASK＞dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)、print_address_description.constprop.0 (mm/kasan/report.c:378)、print_report (mm/kasan/report.c:482)、kasan_report (mm/kasan/report.c:595)、__mld_query_work (net/ipv6/mcast.c:1512)、mld_query_work (net/ipv6/mcast.c:1563)、process_one_work (kernel/workqueue.c:3314)、worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)、kthread (kernel/kthread.c:436)、ret_from_fork (arch/x86/kernel/process.c:158)、ret_from_fork_asm (arch/x86/entry/entry_64.S:245)＜/TASK＞ [...] タスク118によって対象のメモリが解放されました。解放時のスタックトレースは以下の通りです。kasan_save_stack (mm/kasan/common.c:57)、kasan_save_track (mm/kasan/common.c:78)、kasan_save_free_info (mm/kasan/generic.c:584)、__kasan_slab_free (mm/kasan/common.c:253 mm/kasan/common.c:285)、kfree (./include/linux/kasan.h:235 mm/slub.c:2689 mm/slub.c:6251 mm/slub.c:6566)、pskb_expand_head (net/core/skbuff.c:2335)、__pskb_pull_tail (net/core/skbuff.c:2878 (discriminator 4))、__mld_query_work (net/ipv6/mcast.c:1495 (discriminator 1))、mld_query_work (net/ipv6/mcast.c:1563)、process_one_work (kernel/workqueue.c:3314)、worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)、kthread (kernel/kthread.c:436)、ret_from_fork (arch/x86/kernel/process.c:158)、ret_from_fork_asm (arch/x86/entry/entry_64.S:245)となっています。

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Fix availability varies by product
Affected
Fixed
Linux: < 2.6.15, 5.10.269 ≤ 5.10.*, 5.15.210 ≤ 5.15.*, 6.1.176 ≤ 6.1.*, 6.6.143 ≤ 6.6.*, 6.12.94 ≤ 6.12.*, 6.18.36 ≤ 6.18.*, 7.0.13 ≤ 7.0.*, 7.1 ≤ *
Action
Use the product-specific evidence above. Patch only products with a verified fixed release, and keep every affected or under-investigation state without a matching fix in the remediation queue.
Workaround
No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.
04

Evidence and provenance

Published 25 Jun 2026 · Last source change 8 Sept 2026, 08:50 UTC · CWE-416 · Use After Free

CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2026-39226
Product sourceVendor CSAF · SUSE Product Security Team
Remediation sourceVendor CSAF · SUSE Product Security Team
CWE sourceNIST NVD
NVD statusNVD modified after enrichment

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗
  1. Affected versionsThe structured affected or fixed version information changed.
    Before
    kernel as a component of Red Hat Enterprise Linux 6; kernel-abi-whitelists as a component of Red Hat Enterprise Linux 6; kernel-bootwrapper as a component of Red Hat Enterprise Linux 6; kernel-debug as a component of Red Hat Enterprise Linux 6; kernel-debug-devel as a component of Red Hat Enterprise Linux 6; kernel-devel as a component of Red Hat Enterprise Linux 6; kernel-doc as a component of Red Hat Enterprise Linux 6; kernel-firmware as a component of Red Hat Enterprise Linux 6; kernel-headers as a component of Red Hat Enterprise Linux 6; kernel-kdump as a component of Red Hat Enterprise Linux 6; kernel-kdump-devel as a component of Red Hat Enterprise Linux 6; kernel.src as a component of Red Hat Enterprise Linux 6; perf as a component of Red Hat Enterprise Linux 6; python-perf as a component of Red Hat Enterprise Linux 6; bpftool as a component of Red Hat Enterprise Linux 7; kernel as a component of Red Hat Enterprise Linux 7; kernel-abi-whitelists as a component of Red Hat Enterprise Linux 7; kernel-bootwrapper as a component of Red Hat Enterprise Linux 7; kernel-debug as a component of Red Hat Enterprise Linux 7; kernel-debug-devel as a component of Red Hat Enterprise Linux 7; kernel-devel as a component of Red Hat Enterprise Linux 7; kernel-doc as a component of Red Hat Enterprise Linux 7; kernel-headers as a component of Red Hat Enterprise Linux 7; kernel-kdump as a component of Red Hat Enterprise Linux 7; kernel-kdump-devel as a component of Red Hat Enterprise Linux 7; kernel-rt as a component of Red Hat Enterprise Linux 7; kernel-rt-debug as a component of Red Hat Enterprise Linux 7; kernel-rt-debug-devel as a component of Red Hat Enterprise Linux 7; kernel-rt-debug-kvm as a component of Red Hat Enterprise Linux 7; kernel-rt-devel as a component of Red Hat Enterprise Linux 7; and 82 more · Fixed: kernel-64k-debug-debuginfo-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-64k-debug-devel-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-64k-debug-devel-matched-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-64k-debuginfo-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-64k-devel-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-64k-devel-matched-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-debuginfo-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-debuginfo-0:6.12.0-211.52.1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-debuginfo-0:6.12.0-211.52.1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-debuginfo-0:6.12.0-211.52.1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-devel-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-devel-0:6.12.0-211.52.1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-devel-0:6.12.0-211.52.1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-devel-0:6.12.0-211.52.1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-devel-matched-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-devel-matched-0:6.12.0-211.52.1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-devel-matched-0:6.12.0-211.52.1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-devel-matched-0:6.12.0-211.52.1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debuginfo-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debuginfo-0:6.12.0-211.52.1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debuginfo-0:6.12.0-211.52.1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debuginfo-0:6.12.0-211.52.1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debuginfo-common-aarch64-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debuginfo-common-ppc64le-0:6.12.0-211.52.1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debuginfo-common-s390x-0:6.12.0-211.52.1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debuginfo-common-x86_64-0:6.12.0-211.52.1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-devel-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-devel-0:6.12.0-211.52.1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-devel-0:6.12.0-211.52.1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-devel-0:6.12.0-211.52.1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); and 582 more
    After
    kernel as a component of Red Hat Enterprise Linux 6; kernel-abi-whitelists as a component of Red Hat Enterprise Linux 6; kernel-bootwrapper as a component of Red Hat Enterprise Linux 6; kernel-debug as a component of Red Hat Enterprise Linux 6; kernel-debug-devel as a component of Red Hat Enterprise Linux 6; kernel-devel as a component of Red Hat Enterprise Linux 6; kernel-doc as a component of Red Hat Enterprise Linux 6; kernel-firmware as a component of Red Hat Enterprise Linux 6; kernel-headers as a component of Red Hat Enterprise Linux 6; kernel-kdump as a component of Red Hat Enterprise Linux 6; kernel-kdump-devel as a component of Red Hat Enterprise Linux 6; kernel.src as a component of Red Hat Enterprise Linux 6; perf as a component of Red Hat Enterprise Linux 6; python-perf as a component of Red Hat Enterprise Linux 6; bpftool as a component of Red Hat Enterprise Linux 7; kernel as a component of Red Hat Enterprise Linux 7; kernel-abi-whitelists as a component of Red Hat Enterprise Linux 7; kernel-bootwrapper as a component of Red Hat Enterprise Linux 7; kernel-debug as a component of Red Hat Enterprise Linux 7; kernel-debug-devel as a component of Red Hat Enterprise Linux 7; kernel-devel as a component of Red Hat Enterprise Linux 7; kernel-doc as a component of Red Hat Enterprise Linux 7; kernel-headers as a component of Red Hat Enterprise Linux 7; kernel-kdump as a component of Red Hat Enterprise Linux 7; kernel-kdump-devel as a component of Red Hat Enterprise Linux 7; kernel-rt as a component of Red Hat Enterprise Linux 7; kernel-rt-debug as a component of Red Hat Enterprise Linux 7; kernel-rt-debug-devel as a component of Red Hat Enterprise Linux 7; kernel-rt-debug-kvm as a component of Red Hat Enterprise Linux 7; kernel-rt-devel as a component of Red Hat Enterprise Linux 7; and 34 more · Fixed: kernel-64k-debug-debuginfo-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-64k-debug-devel-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-64k-debug-devel-matched-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-64k-debuginfo-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-64k-devel-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-64k-devel-matched-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-debuginfo-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-debuginfo-0:6.12.0-211.52.1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-debuginfo-0:6.12.0-211.52.1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-debuginfo-0:6.12.0-211.52.1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-devel-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-devel-0:6.12.0-211.52.1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-devel-0:6.12.0-211.52.1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-devel-0:6.12.0-211.52.1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-devel-matched-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-devel-matched-0:6.12.0-211.52.1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-devel-matched-0:6.12.0-211.52.1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-devel-matched-0:6.12.0-211.52.1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debuginfo-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debuginfo-0:6.12.0-211.52.1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debuginfo-0:6.12.0-211.52.1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debuginfo-0:6.12.0-211.52.1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debuginfo-common-aarch64-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debuginfo-common-ppc64le-0:6.12.0-211.52.1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debuginfo-common-s390x-0:6.12.0-211.52.1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debuginfo-common-x86_64-0:6.12.0-211.52.1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-devel-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-devel-0:6.12.0-211.52.1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-devel-0:6.12.0-211.52.1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-devel-0:6.12.0-211.52.1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); and 732 more
    Red Hat Product Security ↗
  2. Affected versionsThe structured affected or fixed version information changed.
    Before
    kernel as a component of Red Hat Enterprise Linux 6; kernel-abi-whitelists as a component of Red Hat Enterprise Linux 6; kernel-bootwrapper as a component of Red Hat Enterprise Linux 6; kernel-debug as a component of Red Hat Enterprise Linux 6; kernel-debug-devel as a component of Red Hat Enterprise Linux 6; kernel-devel as a component of Red Hat Enterprise Linux 6; kernel-doc as a component of Red Hat Enterprise Linux 6; kernel-firmware as a component of Red Hat Enterprise Linux 6; kernel-headers as a component of Red Hat Enterprise Linux 6; kernel-kdump as a component of Red Hat Enterprise Linux 6; kernel-kdump-devel as a component of Red Hat Enterprise Linux 6; kernel.src as a component of Red Hat Enterprise Linux 6; perf as a component of Red Hat Enterprise Linux 6; python-perf as a component of Red Hat Enterprise Linux 6; bpftool as a component of Red Hat Enterprise Linux 7; kernel as a component of Red Hat Enterprise Linux 7; kernel-abi-whitelists as a component of Red Hat Enterprise Linux 7; kernel-bootwrapper as a component of Red Hat Enterprise Linux 7; kernel-debug as a component of Red Hat Enterprise Linux 7; kernel-debug-devel as a component of Red Hat Enterprise Linux 7; kernel-devel as a component of Red Hat Enterprise Linux 7; kernel-doc as a component of Red Hat Enterprise Linux 7; kernel-headers as a component of Red Hat Enterprise Linux 7; kernel-kdump as a component of Red Hat Enterprise Linux 7; kernel-kdump-devel as a component of Red Hat Enterprise Linux 7; kernel-rt as a component of Red Hat Enterprise Linux 7; kernel-rt-debug as a component of Red Hat Enterprise Linux 7; kernel-rt-debug-devel as a component of Red Hat Enterprise Linux 7; kernel-rt-debug-kvm as a component of Red Hat Enterprise Linux 7; kernel-rt-devel as a component of Red Hat Enterprise Linux 7; and 168 more · Fixed: kernel-64k-debug-debuginfo-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-64k-debug-devel-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-64k-debug-devel-matched-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-64k-debuginfo-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-64k-devel-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-64k-devel-matched-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-debuginfo-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-debuginfo-0:6.12.0-211.52.1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-debuginfo-0:6.12.0-211.52.1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-debuginfo-0:6.12.0-211.52.1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-devel-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-devel-0:6.12.0-211.52.1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-devel-0:6.12.0-211.52.1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-devel-0:6.12.0-211.52.1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-devel-matched-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-devel-matched-0:6.12.0-211.52.1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-devel-matched-0:6.12.0-211.52.1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-devel-matched-0:6.12.0-211.52.1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debuginfo-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debuginfo-0:6.12.0-211.52.1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debuginfo-0:6.12.0-211.52.1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debuginfo-0:6.12.0-211.52.1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debuginfo-common-aarch64-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debuginfo-common-ppc64le-0:6.12.0-211.52.1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debuginfo-common-s390x-0:6.12.0-211.52.1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debuginfo-common-x86_64-0:6.12.0-211.52.1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-devel-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-devel-0:6.12.0-211.52.1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-devel-0:6.12.0-211.52.1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-devel-0:6.12.0-211.52.1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); and 279 more
    After
    kernel as a component of Red Hat Enterprise Linux 6; kernel-abi-whitelists as a component of Red Hat Enterprise Linux 6; kernel-bootwrapper as a component of Red Hat Enterprise Linux 6; kernel-debug as a component of Red Hat Enterprise Linux 6; kernel-debug-devel as a component of Red Hat Enterprise Linux 6; kernel-devel as a component of Red Hat Enterprise Linux 6; kernel-doc as a component of Red Hat Enterprise Linux 6; kernel-firmware as a component of Red Hat Enterprise Linux 6; kernel-headers as a component of Red Hat Enterprise Linux 6; kernel-kdump as a component of Red Hat Enterprise Linux 6; kernel-kdump-devel as a component of Red Hat Enterprise Linux 6; kernel.src as a component of Red Hat Enterprise Linux 6; perf as a component of Red Hat Enterprise Linux 6; python-perf as a component of Red Hat Enterprise Linux 6; bpftool as a component of Red Hat Enterprise Linux 7; kernel as a component of Red Hat Enterprise Linux 7; kernel-abi-whitelists as a component of Red Hat Enterprise Linux 7; kernel-bootwrapper as a component of Red Hat Enterprise Linux 7; kernel-debug as a component of Red Hat Enterprise Linux 7; kernel-debug-devel as a component of Red Hat Enterprise Linux 7; kernel-devel as a component of Red Hat Enterprise Linux 7; kernel-doc as a component of Red Hat Enterprise Linux 7; kernel-headers as a component of Red Hat Enterprise Linux 7; kernel-kdump as a component of Red Hat Enterprise Linux 7; kernel-kdump-devel as a component of Red Hat Enterprise Linux 7; kernel-rt as a component of Red Hat Enterprise Linux 7; kernel-rt-debug as a component of Red Hat Enterprise Linux 7; kernel-rt-debug-devel as a component of Red Hat Enterprise Linux 7; kernel-rt-debug-kvm as a component of Red Hat Enterprise Linux 7; kernel-rt-devel as a component of Red Hat Enterprise Linux 7; and 82 more · Fixed: kernel-64k-debug-debuginfo-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-64k-debug-devel-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-64k-debug-devel-matched-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-64k-debuginfo-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-64k-devel-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-64k-devel-matched-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-debuginfo-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-debuginfo-0:6.12.0-211.52.1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-debuginfo-0:6.12.0-211.52.1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-debuginfo-0:6.12.0-211.52.1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-devel-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-devel-0:6.12.0-211.52.1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-devel-0:6.12.0-211.52.1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-devel-0:6.12.0-211.52.1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-devel-matched-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-devel-matched-0:6.12.0-211.52.1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-devel-matched-0:6.12.0-211.52.1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debug-devel-matched-0:6.12.0-211.52.1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debuginfo-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debuginfo-0:6.12.0-211.52.1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debuginfo-0:6.12.0-211.52.1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debuginfo-0:6.12.0-211.52.1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debuginfo-common-aarch64-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debuginfo-common-ppc64le-0:6.12.0-211.52.1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debuginfo-common-s390x-0:6.12.0-211.52.1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-debuginfo-common-x86_64-0:6.12.0-211.52.1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-devel-0:6.12.0-211.52.1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-devel-0:6.12.0-211.52.1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-devel-0:6.12.0-211.52.1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); kernel-devel-0:6.12.0-211.52.1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); and 582 more
    Red Hat Product Security ↗
  3. Affected versionsThe structured affected or fixed version information changed.
    Before
    Linux: 97300b5fdfe28c6edae926926f9467a27cf5889c < 1354271c89d0e5fbf8b3d94097ff0216695209c7, 97300b5fdfe28c6edae926926f9467a27cf5889c < 53baa63a4183291574483f89583dbef13677a2c4, 97300b5fdfe28c6edae926926f9467a27cf5889c < 2a613bf497029d555a7428406aa8cdb84a503cea, 97300b5fdfe28c6edae926926f9467a27cf5889c < b2eb8886200b907fc71806869620609f0f4cacb0, 97300b5fdfe28c6edae926926f9467a27cf5889c < 4203806f700bb44ea0b05d484d9d40044b47fb04, 97300b5fdfe28c6edae926926f9467a27cf5889c < 087dbacf897c020f438f780f0a4a8aa73b6d7c5a, 97300b5fdfe28c6edae926926f9467a27cf5889c < 791c91dc7a9dfb2457d5e29b8216a6484b9c4b40, 2.6.15 · Fixed: Linux: < 2.6.15, 5.15.210 ≤ 5.15.*, 6.1.176 ≤ 6.1.*, 6.6.143 ≤ 6.6.*, 6.12.94 ≤ 6.12.*, 6.18.36 ≤ 6.18.*, 7.0.13 ≤ 7.0.*, 7.1 ≤ *
    After
    Linux: 97300b5fdfe28c6edae926926f9467a27cf5889c < dfaf1f5e7eb81be87582bd6a57d34e61a57d5dea, 97300b5fdfe28c6edae926926f9467a27cf5889c < 1354271c89d0e5fbf8b3d94097ff0216695209c7, 97300b5fdfe28c6edae926926f9467a27cf5889c < 53baa63a4183291574483f89583dbef13677a2c4, 97300b5fdfe28c6edae926926f9467a27cf5889c < 2a613bf497029d555a7428406aa8cdb84a503cea, 97300b5fdfe28c6edae926926f9467a27cf5889c < b2eb8886200b907fc71806869620609f0f4cacb0, 97300b5fdfe28c6edae926926f9467a27cf5889c < 4203806f700bb44ea0b05d484d9d40044b47fb04, 97300b5fdfe28c6edae926926f9467a27cf5889c < 087dbacf897c020f438f780f0a4a8aa73b6d7c5a, 97300b5fdfe28c6edae926926f9467a27cf5889c < 791c91dc7a9dfb2457d5e29b8216a6484b9c4b40, 2.6.15 · Fixed: Linux: < 2.6.15, 5.10.269 ≤ 5.10.*, 5.15.210 ≤ 5.15.*, 6.1.176 ≤ 6.1.*, 6.6.143 ≤ 6.6.*, 6.12.94 ≤ 6.12.*, 6.18.36 ≤ 6.18.*, 7.0.13 ≤ 7.0.*, 7.1 ≤ *
    CNA ↗
  4. Affected versionsThe structured affected or fixed version information changed.
    Before
    97300b5fdfe28c6edae926926f9467a27cf5889c < 1354271c89d0e5fbf8b3d94097ff0216695209c7; 97300b5fdfe28c6edae926926f9467a27cf5889c < 53baa63a4183291574483f89583dbef13677a2c4; 97300b5fdfe28c6edae926926f9467a27cf5889c < 2a613bf497029d555a7428406aa8cdb84a503cea; 97300b5fdfe28c6edae926926f9467a27cf5889c < b2eb8886200b907fc71806869620609f0f4cacb0; 97300b5fdfe28c6edae926926f9467a27cf5889c < 4203806f700bb44ea0b05d484d9d40044b47fb04; 97300b5fdfe28c6edae926926f9467a27cf5889c < 087dbacf897c020f438f780f0a4a8aa73b6d7c5a; 97300b5fdfe28c6edae926926f9467a27cf5889c < 791c91dc7a9dfb2457d5e29b8216a6484b9c4b40; 2.6.15 · Fixed: < 2.6.15; 5.15.210 ≤ 5.15.*; 6.1.176 ≤ 6.1.*; 6.6.143 ≤ 6.6.*; 6.12.94 ≤ 6.12.*; 6.18.36 ≤ 6.18.*; 7.0.13 ≤ 7.0.*; 7.1 ≤ *
    After
    97300b5fdfe28c6edae926926f9467a27cf5889c < dfaf1f5e7eb81be87582bd6a57d34e61a57d5dea; 97300b5fdfe28c6edae926926f9467a27cf5889c < 1354271c89d0e5fbf8b3d94097ff0216695209c7; 97300b5fdfe28c6edae926926f9467a27cf5889c < 53baa63a4183291574483f89583dbef13677a2c4; 97300b5fdfe28c6edae926926f9467a27cf5889c < 2a613bf497029d555a7428406aa8cdb84a503cea; 97300b5fdfe28c6edae926926f9467a27cf5889c < b2eb8886200b907fc71806869620609f0f4cacb0; 97300b5fdfe28c6edae926926f9467a27cf5889c < 4203806f700bb44ea0b05d484d9d40044b47fb04; 97300b5fdfe28c6edae926926f9467a27cf5889c < 087dbacf897c020f438f780f0a4a8aa73b6d7c5a; 97300b5fdfe28c6edae926926f9467a27cf5889c < 791c91dc7a9dfb2457d5e29b8216a6484b9c4b40 · Fixed: < 2.6.15; 5.10.269 ≤ 5.10.*; 5.15.210 ≤ 5.15.*; 6.1.176 ≤ 6.1.*; 6.6.143 ≤ 6.6.*; 6.12.94 ≤ 6.12.*; 6.18.36 ≤ 6.18.*; 7.0.13 ≤ 7.0.*
    CNA ↗
  5. Affected versionsThe structured affected or fixed version information changed.
    Before
    97300b5fdfe28c6edae926926f9467a27cf5889c < dfaf1f5e7eb81be87582bd6a57d34e61a57d5dea; 97300b5fdfe28c6edae926926f9467a27cf5889c < 1354271c89d0e5fbf8b3d94097ff0216695209c7; 97300b5fdfe28c6edae926926f9467a27cf5889c < 53baa63a4183291574483f89583dbef13677a2c4; 97300b5fdfe28c6edae926926f9467a27cf5889c < 2a613bf497029d555a7428406aa8cdb84a503cea; 97300b5fdfe28c6edae926926f9467a27cf5889c < b2eb8886200b907fc71806869620609f0f4cacb0; 97300b5fdfe28c6edae926926f9467a27cf5889c < 4203806f700bb44ea0b05d484d9d40044b47fb04; 97300b5fdfe28c6edae926926f9467a27cf5889c < 087dbacf897c020f438f780f0a4a8aa73b6d7c5a; 97300b5fdfe28c6edae926926f9467a27cf5889c < 791c91dc7a9dfb2457d5e29b8216a6484b9c4b40 · Fixed: < 2.6.15; 5.10.269 ≤ 5.10.*; 5.15.210 ≤ 5.15.*; 6.1.176 ≤ 6.1.*; 6.6.143 ≤ 6.6.*; 6.12.94 ≤ 6.12.*; 6.18.36 ≤ 6.18.*; 7.0.13 ≤ 7.0.*
    After
    Linux: 97300b5fdfe28c6edae926926f9467a27cf5889c < 1354271c89d0e5fbf8b3d94097ff0216695209c7, 97300b5fdfe28c6edae926926f9467a27cf5889c < 53baa63a4183291574483f89583dbef13677a2c4, 97300b5fdfe28c6edae926926f9467a27cf5889c < 2a613bf497029d555a7428406aa8cdb84a503cea, 97300b5fdfe28c6edae926926f9467a27cf5889c < b2eb8886200b907fc71806869620609f0f4cacb0, 97300b5fdfe28c6edae926926f9467a27cf5889c < 4203806f700bb44ea0b05d484d9d40044b47fb04, 97300b5fdfe28c6edae926926f9467a27cf5889c < 087dbacf897c020f438f780f0a4a8aa73b6d7c5a, 97300b5fdfe28c6edae926926f9467a27cf5889c < 791c91dc7a9dfb2457d5e29b8216a6484b9c4b40, 2.6.15 · Fixed: Linux: < 2.6.15, 5.15.210 ≤ 5.15.*, 6.1.176 ≤ 6.1.*, 6.6.143 ≤ 6.6.*, 6.12.94 ≤ 6.12.*, 6.18.36 ≤ 6.18.*, 7.0.13 ≤ 7.0.*, 7.1 ≤ *
    CNA ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2026-39226↗Vendor CSAF · SUSE Product Security Team↗Patch or update reference↗Patch or update reference↗Patch or update reference↗Patch or update reference↗CVE authority or vendor reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2026-53275 · cve.blacktree.nl