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Full vulnerability report · 2026
CVE-2026-53228High confidence

ipv6: sit: reload inner IPv6 header after GSO offloads

Linux · Linux

9.8CriticalCVSS 3.1
Recommended action
Patch only the product branches with a verified fix

Critical technical impact with a remotely reachable, unauthenticated path; no CISA KEV confirmation is currently recorded. Verified remediation exists for at least one product or source, but 20 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 severityCriticalOperational priority:Critical, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • The selected CVSS metric records a network-reachable, unauthenticated path with no user interaction.
  • EPSS is 0.51% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict the affected network interface to trusted sources where business-safe.
  • 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 3 daysRemediation target: Within 90 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 20 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 5 Oct 2026
Debian bookwormbookworm · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.6.1.176-1Debian Security Tracker ↗Source updated 5 Oct 2026
Debian forkyforky · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.7.0.13-1Debian Security Tracker ↗Source updated 5 Oct 2026
Debian sidsid · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.7.0.13-1Debian Security Tracker ↗Source updated 5 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.

2 current
CVE-2026-53228 · CSAF 2.0 · revision 15 · interimSUSE Product Security TeamCVE-2026-53228
314 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 Availability Extension 16.0
  • kernel-source as component of SUSE Linux Enterprise High Availability Extension 16.0
  • kernel-default as component of SUSE Linux Enterprise High Performance Computing 12 SP4
Summary
In the Linux kernel, the following vulnerability has been resolved: ipv6: sit: reload inner IPv6 header after GSO offloads ipip6_tunnel_xmit() caches the inner IPv6 header pointer at function entry and continues using it after iptunnel_handle_offloads(). For GSO skbs, iptunnel_handle_offloads() calls skb_header_unclone(). When the skb header is cloned, skb_header_unclone() can call pskb_expand_head(), which may move the skb head. The pskb_expand_head() contract requires pointers into the skb header to be reloaded after the call. If the later skb_realloc_headroom() branch is not taken, SIT uses the stale iph6 pointer to read the inner hop limit and DS field. That can read from a freed skb head after the old head's remaining clone is released. Reload iph6 after the offload helper succeeds and before subsequent reads from the inner IPv6 header. Keep the existing reload after skb_realloc_headroom(), since that branch can also replace the skb.
Remediation
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
CVE-2026-53228 · CSAF 2.0 · revision 3 · finalRed Hat Product Securitykernel: ipv6: sit: reload inner IPv6 header after GSO offloads
150 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 Simple Internet Transition (SIT) tunnel driver for IPv6. When processing network traffic with Generic Segmentation Offload (GSO) enabled, the driver may use a stale pointer to the inner IPv6 header after the socket buffer (skb) head has been reallocated. This can lead to reading from freed memory, potentially allowing an attacker to cause a denial of service or gain access to sensitive information.
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.
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-2026-39319

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

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
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionPatch only the product branches with a verified fix

Critical technical impact with a remotely reachable, unauthenticated path; no CISA KEV confirmation is currently recorded. Verified remediation exists for at least one product or source, but 20 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: sit: reload inner IPv6 header after GSO offloads ipip6_tunnel_xmit() caches the inner IPv6 header pointer at function entry and continues using it after iptunnel_handle_offloads(). For GSO skbs, iptunnel_handle_offloads() calls skb_header_unclone(). When the skb header is cloned, skb_header_unclone() can call pskb_expand_head(), which may move the skb head. The pskb_expand_head() contract requires pointers into the skb header to be reloaded after the call. If the later skb_realloc_headroom() branch is not taken, SIT uses the stale iph6 pointer to read the inner hop limit and DS field. That can read from a freed skb head after the old head's remaining clone is released. Reload iph6 after the offload helper succeeds and before subsequent reads from the inner IPv6 header. Keep the existing reload after skb_realloc_headroom(), since that branch can also replace the skb.

What

In the Linux kernel, the following vulnerability has been resolved: ipv6: sit: reload inner IPv6 header after GSO offloads ipip6_tunnel_xmit() caches the inner IPv6 header pointer at function entry and continues using it after iptunnel_handle_offloads(). For GSO skbs, iptunnel_handle_offloads() calls skb_header_unclone(). When the skb header is cloned, skb_header_unclone() can call pskb_expand_head(), which may move the skb head. The pskb_expand_head() contract requires pointers into the skb header to be reloaded after the call. If the later skb_realloc_headroom() branch is not taken, SIT uses the stale iph6 pointer to read the inner hop limit and DS field. That can read from a freed skb head after the old head's remaining clone is released. Reload iph6 after the offload helper succeeds and before subsequent reads from the inner IPv6 header. Keep the existing reload after skb_realloc_headroom(), since that branch can also replace the skb.

Why

The current structured CVE record identifies a security weakness, but the root cause requires confirmation in the linked vendor material.

How

An attacker operating through a network path 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: sit: reload inner IPv6 header after GSO offloads ipip6_tunnel_xmit() caches the inner IPv6 header pointer at function entry and continues using it after iptunnel_handle_offloads(). For GSO skbs, iptunnel_handle_offloads() calls skb_header_unclone(). When the skb header is cloned, skb_header_unclone() can call pskb_expand_head(), which may move the skb head. The pskb_expand_head() contract requires pointers into the skb header to be reloaded after the call. If the later skb_realloc_headroom() branch is not taken, SIT uses the stale iph6 pointer to read the inner hop limit and DS field. That can read from a freed skb head after the old head's remaining clone is released. Reload iph6 after the offload helper succeeds and before subsequent reads from the inner IPv6 header. Keep the existing reload after skb_realloc_headroom(), since that branch can also replace the skb.

Why

The current structured CVE record identifies a security weakness, but the root cause requires confirmation in the linked vendor material.

How

An attacker operating through a network path 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
a network path → vulnerable operation → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Network
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.
CWE not yet assigned
CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/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.

AVNetworkAttack vector: The vulnerable component can be reached over a 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.
NetworkUnauthenticated
A

Official authority intelligence

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

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-2026-53219 Référence CVE CVE-2026-53220 https://www.cve.org/CVERecord?id=CVE-2026-53220 Référence CVE CVE-2026-53221 https://www.cve.org/CVERecord?id=CVE-2026-53221 Référence CVE CVE-2026-53222 https://www.cve.org/CVERecord?id=CVE-2026-53222 Référence CVE CVE-2026-53223 https://www.cve.org/CVERecord?id=CVE-2026-53223 Référence CVE CVE-2026-53224 https://www.cve.org/CVERecord?id=CVE-2026-53224 Référence CVE CVE-2026-53225 https://www.cve.org/CVERecord?id=CVE-2026-53225 Référence CVE CVE-2026-53226 https://www.cve.org/CVERecord?id=CVE-2026-53226 Référence CVE CVE-2026-53227 https://www.cve.org/CVERecord?id=CVE-2026-53227 Référence CVE CVE-2026-53228 https://www.cve.org/CVERecord?id=CVE-2026-53228 Référence CVE CVE-2026-53229 https://www.cve.org/CVERecord?id=CVE-2026-53229 Référence CVE CVE-2026-53230 https://www.cve.org/CVERecord?id=CVE-2026-53230 Référence CVE CVE-2026-53231 https://www.cve.org/CVERecord?id=CVE-2026-53231 Référence CVE CVE-2026-53232 https://www.cve.org/CVERecord?id=CVE-2026-53232 Référence CVE CVE-2026-53233 https://www.cve.org/CVERecord?id=CVE-2026-53233 Référence CVE CVE-2026-53234 https://www.cve.org/CVERecord?id=CVE-2026-53234 Référence CVE CVE-2026-53235 https://www.cve.org/CVERecord?id=CVE-2026-53235 Référence CVE CVE-2026-53236 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1255Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-53129 Référence CVE CVE-2026-53142 https://www.cve.org/CVERecord?id=CVE-2026-53142 Référence CVE CVE-2026-53154 https://www.cve.org/CVERecord?id=CVE-2026-53154 Référence CVE CVE-2026-53163 https://www.cve.org/CVERecord?id=CVE-2026-53163 Référence CVE CVE-2026-53180 https://www.cve.org/CVERecord?id=CVE-2026-53180 Référence CVE CVE-2026-53207 https://www.cve.org/CVERecord?id=CVE-2026-53207 Référence CVE CVE-2026-53219 https://www.cve.org/CVERecord?id=CVE-2026-53219 Référence CVE CVE-2026-53220 https://www.cve.org/CVERecord?id=CVE-2026-53220 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-2026-53238 https://www.cve.org/CVERecord?id=CVE-2026-53238 Référence CVE CVE-2026-53264 https://www.cve.org/CVERecord?id=CVE-2026-53264 Référence CVE CVE-2026-53269 https://www.cve.org/CVERecord?id=CVE-2026-53269 Référence CVE CVE-2026-53284 https://www.cve.org/CVERecord?id=CVE-2026-53284 Référence CVE CVE-2026-53291 https://www.cve.org/CVERecord?id=CVE-2026-53291 Référence CVE CVE-2026-53309 https://www.cve.org/CVERecord?id=CVE-2026-53309 Référence CVE CVE-2026-53330 https://www.cve.org/CVERecord?id=CVE-2026-53330 Référence CVE CVE-2026-53336 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-2026-53219 Référence CVE CVE-2026-53220 https://www.cve.org/CVERecord?id=CVE-2026-53220 Référence CVE CVE-2026-53221 https://www.cve.org/CVERecord?id=CVE-2026-53221 Référence CVE CVE-2026-53222 https://www.cve.org/CVERecord?id=CVE-2026-53222 Référence CVE CVE-2026-53223 https://www.cve.org/CVERecord?id=CVE-2026-53223 Référence CVE CVE-2026-53224 https://www.cve.org/CVERecord?id=CVE-2026-53224 Référence CVE CVE-2026-53225 https://www.cve.org/CVERecord?id=CVE-2026-53225 Référence CVE CVE-2026-53226 https://www.cve.org/CVERecord?id=CVE-2026-53226 Référence CVE CVE-2026-53227 https://www.cve.org/CVERecord?id=CVE-2026-53227 Référence CVE CVE-2026-53228 https://www.cve.org/CVERecord?id=CVE-2026-53228 Référence CVE CVE-2026-53229 https://www.cve.org/CVERecord?id=CVE-2026-53229 Référence CVE CVE-2026-53230 https://www.cve.org/CVERecord?id=CVE-2026-53230 Référence CVE CVE-2026-53231 https://www.cve.org/CVERecord?id=CVE-2026-53231 Référence CVE CVE-2026-53232 https://www.cve.org/CVERecord?id=CVE-2026-53232 Référence CVE CVE-2026-53233 https://www.cve.org/CVERecord?id=CVE-2026-53233 Référence CVE CVE-2026-53234 https://www.cve.org/CVERecord?id=CVE-2026-53234 Référence CVE CVE-2026-53235 https://www.cve.org/CVERecord?id=CVE-2026-53235 Référence CVE CVE-2026-53236 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1231Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-53061 Référence CVE CVE-2026-53077 https://www.cve.org/CVERecord?id=CVE-2026-53077 Référence CVE CVE-2026-53089 https://www.cve.org/CVERecord?id=CVE-2026-53089 Référence CVE CVE-2026-53091 https://www.cve.org/CVERecord?id=CVE-2026-53091 Référence CVE CVE-2026-53149 https://www.cve.org/CVERecord?id=CVE-2026-53149 Référence CVE CVE-2026-53163 https://www.cve.org/CVERecord?id=CVE-2026-53163 Référence CVE CVE-2026-53219 https://www.cve.org/CVERecord?id=CVE-2026-53219 Référence CVE CVE-2026-53220 https://www.cve.org/CVERecord?id=CVE-2026-53220 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-2026-53238 https://www.cve.org/CVERecord?id=CVE-2026-53238 Référence CVE CVE-2026-53260 https://www.cve.org/CVERecord?id=CVE-2026-53260 Référence CVE CVE-2026-53264 https://www.cve.org/CVERecord?id=CVE-2026-53264 Référence CVE CVE-2026-53265 https://www.cve.org/CVERecord?id=CVE-2026-53265 Référence CVE CVE-2026-53309 https://www.cve.org/CVERecord?id=CVE-2026-53309 Référence CVE CVE-2026-53360 https://www.cve.org/CVERecord?id=CVE-2026-53360 Référence CVE CVE-2026-53374 https://www.cve.org/CVERecord?id=CVE-2026-53374 Référence CVE CVE-2026-53381 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1202Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-53154 Référence CVE CVE-2026-53163 https://www.cve.org/CVERecord?id=CVE-2026-53163 Référence CVE CVE-2026-53180 https://www.cve.org/CVERecord?id=CVE-2026-53180 Référence CVE CVE-2026-53182 https://www.cve.org/CVERecord?id=CVE-2026-53182 Référence CVE CVE-2026-53207 https://www.cve.org/CVERecord?id=CVE-2026-53207 Référence CVE CVE-2026-53219 https://www.cve.org/CVERecord?id=CVE-2026-53219 Référence CVE CVE-2026-53220 https://www.cve.org/CVERecord?id=CVE-2026-53220 Référence CVE CVE-2026-53223 https://www.cve.org/CVERecord?id=CVE-2026-53223 Référence CVE CVE-2026-53224 https://www.cve.org/CVERecord?id=CVE-2026-53224 Référence CVE CVE-2026-53228 https://www.cve.org/CVERecord?id=CVE-2026-53228 Référence CVE CVE-2026-53238 https://www.cve.org/CVERecord?id=CVE-2026-53238 Référence CVE CVE-2026-53246 https://www.cve.org/CVERecord?id=CVE-2026-53246 Référence CVE CVE-2026-53260 https://www.cve.org/CVERecord?id=CVE-2026-53260 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-2026-53269 https://www.cve.org/CVERecord?id=CVE-2026-53269 Référence CVE CVE-2026-53273 https://www.cve.org/CVERecord?id=CVE-2026-53273 Référence CVE CVE-2026-53309 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-2026-53219 Référence CVE CVE-2026-53220 https://www.cve.org/CVERecord?id=CVE-2026-53220 Référence CVE CVE-2026-53221 https://www.cve.org/CVERecord?id=CVE-2026-53221 Référence CVE CVE-2026-53222 https://www.cve.org/CVERecord?id=CVE-2026-53222 Référence CVE CVE-2026-53223 https://www.cve.org/CVERecord?id=CVE-2026-53223 Référence CVE CVE-2026-53224 https://www.cve.org/CVERecord?id=CVE-2026-53224 Référence CVE CVE-2026-53225 https://www.cve.org/CVERecord?id=CVE-2026-53225 Référence CVE CVE-2026-53226 https://www.cve.org/CVERecord?id=CVE-2026-53226 Référence CVE CVE-2026-53227 https://www.cve.org/CVERecord?id=CVE-2026-53227 Référence CVE CVE-2026-53228 https://www.cve.org/CVERecord?id=CVE-2026-53228 Référence CVE CVE-2026-53229 https://www.cve.org/CVERecord?id=CVE-2026-53229 Référence CVE CVE-2026-53230 https://www.cve.org/CVERecord?id=CVE-2026-53230 Référence CVE CVE-2026-53231 https://www.cve.org/CVERecord?id=CVE-2026-53231 Référence CVE CVE-2026-53232 https://www.cve.org/CVERecord?id=CVE-2026-53232 Référence CVE CVE-2026-53233 https://www.cve.org/CVERecord?id=CVE-2026-53233 Référence CVE CVE-2026-53234 https://www.cve.org/CVERecord?id=CVE-2026-53234 Référence CVE CVE-2026-53235 https://www.cve.org/CVERecord?id=CVE-2026-53235 Référence CVE CVE-2026-53236 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-2026-53071 Référence CVE CVE-2026-53075 https://www.cve.org/CVERecord?id=CVE-2026-53075 Référence CVE CVE-2026-53131 https://www.cve.org/CVERecord?id=CVE-2026-53131 Référence CVE CVE-2026-53176 https://www.cve.org/CVERecord?id=CVE-2026-53176 Référence CVE CVE-2026-53182 https://www.cve.org/CVERecord?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=

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

d?id=CVE-2026-53219 Référence CVE CVE-2026-53220 https://www.cve.org/CVERecord?id=CVE-2026-53220 Référence CVE CVE-2026-53221 https://www.cve.org/CVERecord?id=CVE-2026-53221 Référence CVE CVE-2026-53222 https://www.cve.org/CVERecord?id=CVE-2026-53222 Référence CVE CVE-2026-53223 https://www.cve.org/CVERecord?id=CVE-2026-53223 Référence CVE CVE-2026-53224 https://www.cve.org/CVERecord?id=CVE-2026-53224 Référence CVE CVE-2026-53225 https://www.cve.org/CVERecord?id=CVE-2026-53225 Référence CVE CVE-2026-53226 https://www.cve.org/CVERecord?id=CVE-2026-53226 Référence CVE CVE-2026-53227 https://www.cve.org/CVERecord?id=CVE-2026-53227 Référence CVE CVE-2026-53228 https://www.cve.org/CVERecord?id=CVE-2026-53228 Référence CVE CVE-2026-53229 https://www.cve.org/CVERecord?id=CVE-2026-53229 Référence CVE CVE-2026-53230 https://www.cve.org/CVERecord?id=CVE-2026-53230 Référence CVE CVE-2026-53231 https://www.cve.org/CVERecord?id=CVE-2026-53231 Référence CVE CVE-2026-53232 https://www.cve.org/CVERecord?id=CVE-2026-53232 Référence CVE CVE-2026-53233 https://www.cve.org/CVERecord?id=CVE-2026-53233 Référence CVE CVE-2026-53234 https://www.cve.org/CVERecord?id=CVE-2026-53234 Référence CVE CVE-2026-53235 https://www.cve.org/CVERecord?id=CVE-2026-53235 Référence CVE CVE-2026-53236 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1164Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-53154 Référence CVE CVE-2026-53163 https://www.cve.org/CVERecord?id=CVE-2026-53163 Référence CVE CVE-2026-53180 https://www.cve.org/CVERecord?id=CVE-2026-53180 Référence CVE CVE-2026-53182 https://www.cve.org/CVERecord?id=CVE-2026-53182 Référence CVE CVE-2026-53207 https://www.cve.org/CVERecord?id=CVE-2026-53207 Référence CVE CVE-2026-53219 https://www.cve.org/CVERecord?id=CVE-2026-53219 Référence CVE CVE-2026-53220 https://www.cve.org/CVERecord?id=CVE-2026-53220 Référence CVE CVE-2026-53223 https://www.cve.org/CVERecord?id=CVE-2026-53223 Référence CVE CVE-2026-53224 https://www.cve.org/CVERecord?id=CVE-2026-53224 Référence CVE CVE-2026-53228 https://www.cve.org/CVERecord?id=CVE-2026-53228 Référence CVE CVE-2026-53238 https://www.cve.org/CVERecord?id=CVE-2026-53238 Référence CVE CVE-2026-53246 https://www.cve.org/CVERecord?id=CVE-2026-53246 Référence CVE CVE-2026-53260 https://www.cve.org/CVERecord?id=CVE-2026-53260 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-2026-53269 https://www.cve.org/CVERecord?id=CVE-2026-53269 Référence CVE CVE-2026-53273 https://www.cve.org/CVERecord?id=CVE-2026-53273 Référence CVE CVE-2026-53309 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1117Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-53043 Référence CVE CVE-2026-53045 https://www.cve.org/CVERecord?id=CVE-2026-53045 Référence CVE CVE-2026-53086 https://www.cve.org/CVERecord?id=CVE-2026-53086 Référence CVE CVE-2026-53088 https://www.cve.org/CVERecord?id=CVE-2026-53088 Référence CVE CVE-2026-53176 https://www.cve.org/CVERecord?id=CVE-2026-53176 Référence CVE CVE-2026-53212 https://www.cve.org/CVERecord?id=CVE-2026-53212 Référence CVE CVE-2026-53215 https://www.cve.org/CVERecord?id=CVE-2026-53215 Référence CVE CVE-2026-53224 https://www.cve.org/CVERecord?id=CVE-2026-53224 Référence CVE CVE-2026-53225 https://www.cve.org/CVERecord?id=CVE-2026-53225 Référence CVE CVE-2026-53228 https://www.cve.org/CVERecord?id=CVE-2026-53228 Référence CVE CVE-2026-53246 https://www.cve.org/CVERecord?id=CVE-2026-53246 Référence CVE CVE-2026-53309 https://www.cve.org/CVERecord?id=CVE-2026-53309 Référence CVE CVE-2026-53359 https://www.cve.org/CVERecord?id=CVE-2026-53359 Référence CVE CVE-2026-64531 https://www.cve.org/CVERecord?id=CVE-2026-64531 Gestion détaillée du document le 04 septembre 2026 Version initiale Alertes Avis Bulletins d’actualités Mentions légales Conditions générales À propos Contact cyber.gouv.fr service-public.fr legifrance.gouv.fr info.gouv.fr france.fr info.gouv.fr/risques Premier Ministre / Secrétariat Général

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1093Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-53128 Référence CVE CVE-2026-53130 https://www.cve.org/CVERecord?id=CVE-2026-53130 Référence CVE CVE-2026-53131 https://www.cve.org/CVERecord?id=CVE-2026-53131 Référence CVE CVE-2026-53151 https://www.cve.org/CVERecord?id=CVE-2026-53151 Référence CVE CVE-2026-53176 https://www.cve.org/CVERecord?id=CVE-2026-53176 Référence CVE CVE-2026-53212 https://www.cve.org/CVERecord?id=CVE-2026-53212 Référence CVE CVE-2026-53215 https://www.cve.org/CVERecord?id=CVE-2026-53215 Référence CVE CVE-2026-53224 https://www.cve.org/CVERecord?id=CVE-2026-53224 Référence CVE CVE-2026-53225 https://www.cve.org/CVERecord?id=CVE-2026-53225 Référence CVE CVE-2026-53228 https://www.cve.org/CVERecord?id=CVE-2026-53228 Référence CVE CVE-2026-53246 https://www.cve.org/CVERecord?id=CVE-2026-53246 Référence CVE CVE-2026-53247 https://www.cve.org/CVERecord?id=CVE-2026-53247 Référence CVE CVE-2026-53277 https://www.cve.org/CVERecord?id=CVE-2026-53277 Référence CVE CVE-2026-53287 https://www.cve.org/CVERecord?id=CVE-2026-53287 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=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1066Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-53175 Référence CVE CVE-2026-53176 https://www.cve.org/CVERecord?id=CVE-2026-53176 Référence CVE CVE-2026-53186 https://www.cve.org/CVERecord?id=CVE-2026-53186 Référence CVE CVE-2026-53212 https://www.cve.org/CVERecord?id=CVE-2026-53212 Référence CVE CVE-2026-53215 https://www.cve.org/CVERecord?id=CVE-2026-53215 Référence CVE CVE-2026-53216 https://www.cve.org/CVERecord?id=CVE-2026-53216 Référence CVE CVE-2026-53221 https://www.cve.org/CVERecord?id=CVE-2026-53221 Référence CVE CVE-2026-53224 https://www.cve.org/CVERecord?id=CVE-2026-53224 Référence CVE CVE-2026-53225 https://www.cve.org/CVERecord?id=CVE-2026-53225 Référence CVE CVE-2026-53228 https://www.cve.org/CVERecord?id=CVE-2026-53228 Référence CVE CVE-2026-53246 https://www.cve.org/CVERecord?id=CVE-2026-53246 Référence CVE CVE-2026-53247 https://www.cve.org/CVERecord?id=CVE-2026-53247 Référence CVE CVE-2026-53260 https://www.cve.org/CVERecord?id=CVE-2026-53260 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=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1027Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-53175 Référence CVE CVE-2026-53176 https://www.cve.org/CVERecord?id=CVE-2026-53176 Référence CVE CVE-2026-53186 https://www.cve.org/CVERecord?id=CVE-2026-53186 Référence CVE CVE-2026-53212 https://www.cve.org/CVERecord?id=CVE-2026-53212 Référence CVE CVE-2026-53215 https://www.cve.org/CVERecord?id=CVE-2026-53215 Référence CVE CVE-2026-53216 https://www.cve.org/CVERecord?id=CVE-2026-53216 Référence CVE CVE-2026-53221 https://www.cve.org/CVERecord?id=CVE-2026-53221 Référence CVE CVE-2026-53224 https://www.cve.org/CVERecord?id=CVE-2026-53224 Référence CVE CVE-2026-53225 https://www.cve.org/CVERecord?id=CVE-2026-53225 Référence CVE CVE-2026-53228 https://www.cve.org/CVERecord?id=CVE-2026-53228 Référence CVE CVE-2026-53246 https://www.cve.org/CVERecord?id=CVE-2026-53246 Référence CVE CVE-2026-53247 https://www.cve.org/CVERecord?id=CVE-2026-53247 Référence CVE CVE-2026-53260 https://www.cve.org/CVERecord?id=CVE-2026-53260 Référence CVE CVE-2026-53359 https://www.cve.org/CVERecord?id=CVE-2026-53359 Gestion détaillée du document le 14 août 2026 Version initiale Alertes Avis Bulletins d’actualités Mentions légales Conditions générales À propos Contact cyber.gouv.fr service-public.fr legifrance.gouv.fr info.gouv.fr france.fr info.gouv.fr/risques Premier Ministre / Secrétariat Général de la

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

d?id=CVE-2026-53215 Référence CVE CVE-2026-53216 https://www.cve.org/CVERecord?id=CVE-2026-53216 Référence CVE CVE-2026-53217 https://www.cve.org/CVERecord?id=CVE-2026-53217 Référence CVE CVE-2026-53218 https://www.cve.org/CVERecord?id=CVE-2026-53218 Référence CVE CVE-2026-53219 https://www.cve.org/CVERecord?id=CVE-2026-53219 Référence CVE CVE-2026-53221 https://www.cve.org/CVERecord?id=CVE-2026-53221 Référence CVE CVE-2026-53223 https://www.cve.org/CVERecord?id=CVE-2026-53223 Référence CVE CVE-2026-53225 https://www.cve.org/CVERecord?id=CVE-2026-53225 Référence CVE CVE-2026-53227 https://www.cve.org/CVERecord?id=CVE-2026-53227 Référence CVE CVE-2026-53228 https://www.cve.org/CVERecord?id=CVE-2026-53228 Référence CVE CVE-2026-53236 https://www.cve.org/CVERecord?id=CVE-2026-53236 Référence CVE CVE-2026-53238 https://www.cve.org/CVERecord?id=CVE-2026-53238 Référence CVE CVE-2026-53239 https://www.cve.org/CVERecord?id=CVE-2026-53239 Référence CVE CVE-2026-53242 https://www.cve.org/CVERecord?id=CVE-2026-53242 Référence CVE CVE-2026-53245 https://www.cve.org/CVERecord?id=CVE-2026-53245 Référence CVE CVE-2026-53249 https://www.cve.org/CVERecord?id=CVE-2026-53249 Référence CVE CVE-2026-53252 https://www.cve.org/CVERecord?id=CVE-2026-53252 Référence CVE CVE-2026-53253 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-2026-53209 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53213 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53214 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53215 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53217 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53218 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53219 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53221 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53225 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53227 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53228 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53230 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53236 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53237 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53238 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53239 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53242 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53245 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53247 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53249 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53252 du 27 juin 2026 Bulletin de s

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-022323LinuxのLinux Kernelにおける不特定の脆弱性

Linuxカーネルにおいて、以下の脆弱性が修正されました:ipv6: sit: GSOオフロード後に内側のIPv6ヘッダを再読み込みipip6_tunnel_xmit() は、関数の開始時に内側の IPv6 ヘッダへのポインタをキャッシュし、iptunnel_handle_offloads() の後もそれを使い続けます。GSO の skb に対しては、iptunnel_handle_offloads() が skb_header_unclone() を呼び出します。skb ヘッダがクローンされている場合、skb_header_unclone() は pskb_expand_head() を呼び出すことがあり、これにより skb のヘッドが移動する可能性があります。pskb_expand_head() の契約（仕様）では、呼び出し後に skb ヘッダ内を指すポインタを再読み込みする必要があります。その後の skb_realloc_headroom() 分岐に入らない場合、SIT は古くなった iph6 ポインタを使って内側の hop limit と DS フィールドを読み取ります。これは、古いヘッドの残りのクローンが解放された後、解放済みの skb ヘッドから読み取ってしまう可能性があります。オフロードヘルパーが成功した後、内側の IPv6 ヘッダからの以降の読み取りを行う前に iph6 を再読み込みします。skb_realloc_headroom() の後にある既存の再読み込みは維持します。これは、その分岐でも skb が置き換えられる可能性があるためです。

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: < 3.18, 5.10.259 ≤ 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. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 25 Jun 2026 · Last source change 5 Aug 2026, 12:34 UTC · CWE not yet assigned

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-2026-39319
Product sourceVendor CSAF · SUSE Product Security Team
Remediation sourceVendor CSAF · SUSE Product Security Team
CWE sourceUnavailable
NVD statusNVD enriched

Missing structured fields: CWE classification. Missing data is not evidence of low risk; review the primary advisory.

Material change intelligence

What changed after publication

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  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 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 120 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 429 more
    Red Hat Product Security ↗
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-2026-39319↗Vendor CSAF · SUSE Product Security Team↗CVE authority or vendor reference↗Patch or update reference↗Patch or update reference↗Patch or update 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-2026-53228 · cve.blacktree.nl