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Full vulnerability report · 2025
CVE-2025-21854High confidence

sockmap, vsock: For connectible sockets allow only connected

Linux · Linux

5.5MediumCVSS 3.1
Recommended action
Patch only the product branches with a verified fix

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority. 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 severityMediumOperational priority:Low, lowered one band.downgradedsince 11 May 2026

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • Exploitation requires an existing local or physical foothold with privileges.
  • EPSS is 0.23% 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: No default targetRemediation target: Normal maintenance

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.6.12.17-1Debian Security Tracker ↗Source updated 6 Oct 2026
Debian bookwormbookworm · sourcelinuxNot affectedDebian marks this release not affected (fixed-version marker 0).Not published in this feedDebian Security Tracker ↗Source updated 6 Oct 2026
Debian forkyforky · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.6.12.17-1Debian Security Tracker ↗Source updated 6 Oct 2026
Debian sidsid · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.6.12.17-1Debian 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-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-intelAffected, 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.

1 current
CVE-2025-21854 · CSAF 2.0 · revision 55 · interimSUSE Product Security TeamCVE-2025-21854
82 known affected

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

  • cluster-md-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS
  • dlm-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS
  • gfs2-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS
  • kernel-default as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS
  • kernel-default-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS
  • kernel-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS
  • kernel-macros as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS
  • kernel-source as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS
  • ocfs2-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS
  • cluster-md-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS
  • dlm-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS
  • gfs2-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS
Summary
In the Linux kernel, the following vulnerability has been resolved: sockmap, vsock: For connectible sockets allow only connected sockmap expects all vsocks to have a transport assigned, which is expressed in vsock_proto::psock_update_sk_prot(). However, there is an edge case where an unconnected (connectible) socket may lose its previously assigned transport. This is handled with a NULL check in the vsock/BPF recv path. Another design detail is that listening vsocks are not supposed to have any transport assigned at all. Which implies they are not supported by the sockmap. But this is complicated by the fact that a socket, before switching to TCP_LISTEN, may have had some transport assigned during a failed connect() attempt. Hence, we may end up with a listening vsock in a sockmap, which blows up quickly: KASAN: null-ptr-deref in range [0x0000000000000120-0x0000000000000127] CPU: 7 UID: 0 PID: 56 Comm: kworker/7:0 Not tainted 6.14.0-rc1+ Workqueue: vsock-loopback vsock_loopback_work RIP: 0010:vsock_read_skb+0x4b/0x90 Call Trace: sk_psock_verdict_data_ready+0xa4/0x2e0 virtio_transport_recv_pkt+0x1ca8/0x2acc vsock_loopback_work+0x27d/0x3f0 process_one_work+0x846/0x1420 worker_thread+0x5b3/0xf80 kthread+0x35a/0x700 ret_from_fork+0x2d/0x70 ret_from_fork_asm+0x1a/0x30 For connectible sockets, instead of relying solely on the state of vsk->transport, tell sockmap to only allow those representing established connections. This aligns with the behaviour for AF_INET and AF_UNIX.
Remediation
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
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-2025-7594

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

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority. 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: sockmap, vsock: For connectible sockets allow only connected sockmap expects all vsocks to have a transport assigned, which is expressed in vsock_proto::psock_update_sk_prot(). However, there is an edge case where an unconnected (connectible) socket may lose its previously assigned transport. This is handled with a NULL check in the vsock/BPF recv path. Another design detail is that listening vsocks are not supposed to have any transport assigned at all. Which implies they are not supported by the sockmap. But this is complicated by the fact that a socket, before switching to TCP_LISTEN, may have had some transport assigned during a failed connect() attempt. Hence, we may end up with a listening vsock in a sockmap, which blows up quickly: KASAN: null-ptr-deref in range [0x0000000000000120-0x0000000000000127] CPU: 7 UID: 0 PID: 56 Comm: kworker/7:0 Not tainted 6.14.0-rc1+ Workqueue: vsock-loopback vsock_loopback_work RIP: 0010:vsock_read_skb+0x4b/0x90 Call Trace: sk_psock_verdict_data_ready+0xa4/0x2e0 virtio_transport_recv_pkt+0x1ca8/0x2acc vsock_loopback_work+0x27d/0x3f0 process_one_work+0x846/0x1420 worker_thread+0x5b3/0xf80 kthread+0x35a/0x700 ret_from_fork+0x2d/0x70 ret_from_fork_asm+0x1a/0x30 For connectible sockets, instead of relying solely on the state of vsk->transport, tell sockmap to only allow those representing established connections. This aligns with the behaviour for AF_INET and AF_UNIX.

What

In the Linux kernel, the following vulnerability has been resolved: sockmap, vsock: For connectible sockets allow only connected sockmap expects all vsocks to have a transport assigned, which is expressed in vsock_proto::psock_update_sk_prot(). However, there is an edge case where an unconnected (connectible) socket may lose its previously assigned transport. This is handled with a NULL check in the vsock/BPF recv path. Another design detail is that listening vsocks are not supposed to have any transport assigned at all. Which implies they are not supported by the sockmap. But this is complicated by the fact that a socket, before switching to TCP_LISTEN, may have had some transport assigned during a failed connect() attempt. Hence, we may end up with a listening vsock in a sockmap, which blows up quickly: KASAN: null-ptr-deref in range [0x0000000000000120-0x0000000000000127] CPU: 7 UID: 0 PID: 56 Comm: kworker/7:0 Not tainted 6.14.0-rc1+ Workqueue: vsock-loopback vsock_loopback_work RIP: 0010:vsock_read_skb+0x4b/0x90 Call Trace: sk_psock_verdict_data_ready+0xa4/0x2e0 virtio_transport_recv_pkt+0x1ca8/0x2acc vsock_loopback_work+0x27d/0x3f0 process_one_work+0x846/0x1420 worker_thread+0x5b3/0xf80 kthread+0x35a/0x700 ret_from_fork+0x2d/0x70 ret_from_fork_asm+0x1a/0x30 For connectible sockets, instead of relying solely on the state of vsk->transport, tell sockmap to only allow those representing established connections. This aligns with the behaviour for AF_INET and AF_UNIX.

Why

The product dereferences a pointer that it expects to be valid but is NULL.

How

An attacker operating through local access may attempt exploitation with low privileges. 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: sockmap, vsock: For connectible sockets allow only connected sockmap expects all vsocks to have a transport assigned, which is expressed in vsock_proto::psock_update_sk_prot(). However, there is an edge case where an unconnected (connectible) socket may lose its previously assigned transport. This is handled with a NULL check in the vsock/BPF recv path. Another design detail is that listening vsocks are not supposed to have any transport assigned at all. Which implies they are not supported by the sockmap. But this is complicated by the fact that a socket, before switching to TCP_LISTEN, may have had some transport assigned during a failed connect() attempt. Hence, we may end up with a listening vsock in a sockmap, which blows up quickly: KASAN: null-ptr-deref in range [0x0000000000000120-0x0000000000000127] CPU: 7 UID: 0 PID: 56 Comm: kworker/7:0 Not tainted 6.14.0-rc1+ Workqueue: vsock-loopback vsock_loopback_work RIP: 0010:vsock_read_skb+0x4b/0x90 Call Trace: sk_psock_verdict_data_ready+0xa4/0x2e0 virtio_transport_recv_pkt+0x1ca8/0x2acc vsock_loopback_work+0x27d/0x3f0 process_one_work+0x846/0x1420 worker_thread+0x5b3/0xf80 kthread+0x35a/0x700 ret_from_fork+0x2d/0x70 ret_from_fork_asm+0x1a/0x30 For connectible sockets, instead of relying solely on the state of vsk->transport, tell sockmap to only allow those representing established connections. This aligns with the behaviour for AF_INET and AF_UNIX.

Why

The product dereferences a pointer that it expects to be valid but is NULL.

How

An attacker operating through local access may attempt exploitation with low privileges. 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
local access → NULL Pointer Dereference → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Local
Privileges required
Low: a basic authenticated account is required
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-476 ↗

CWE-476: NULL Pointer Dereference. The product dereferences a pointer that it expects to be valid but is NULL.

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

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

AVLocalAttack vector: The attacker needs local access to the vulnerable system.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRLowPrivileges required: The attacker needs basic user-level privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CNoneConfidentiality impact: No direct loss is represented by this metric.INoneIntegrity impact: No direct loss is represented by this metric.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.
CWE-476
A

Official authority intelligence

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

BSI · German · WID-SEC-2025-0545Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Ein Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um einen Denial of Service Zustand herbeizuführen und um nicht näher beschriebene Auswirkungen zu verursachen.

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-1057Multiples vulnérabilités dans les produits VMware

d?id=CVE-2025-21827 Référence CVE CVE-2025-21828 https://www.cve.org/CVERecord?id=CVE-2025-21828 Référence CVE CVE-2025-21829 https://www.cve.org/CVERecord?id=CVE-2025-21829 Référence CVE CVE-2025-21830 https://www.cve.org/CVERecord?id=CVE-2025-21830 Référence CVE CVE-2025-21832 https://www.cve.org/CVERecord?id=CVE-2025-21832 Référence CVE CVE-2025-21836 https://www.cve.org/CVERecord?id=CVE-2025-21836 Référence CVE CVE-2025-21844 https://www.cve.org/CVERecord?id=CVE-2025-21844 Référence CVE CVE-2025-21847 https://www.cve.org/CVERecord?id=CVE-2025-21847 Référence CVE CVE-2025-21851 https://www.cve.org/CVERecord?id=CVE-2025-21851 Référence CVE CVE-2025-21854 https://www.cve.org/CVERecord?id=CVE-2025-21854 Référence CVE CVE-2025-21856 https://www.cve.org/CVERecord?id=CVE-2025-21856 Référence CVE CVE-2025-21857 https://www.cve.org/CVERecord?id=CVE-2025-21857 Référence CVE CVE-2025-21864 https://www.cve.org/CVERecord?id=CVE-2025-21864 Référence CVE CVE-2025-21869 https://www.cve.org/CVERecord?id=CVE-2025-21869 Référence CVE CVE-2025-21870 https://www.cve.org/CVERecord?id=CVE-2025-21870 Référence CVE CVE-2025-21874 https://www.cve.org/CVERecord?id=CVE-2025-21874 Référence CVE CVE-2025-21876 https://www.cve.org/CVERecord?id=CVE-2025-21876 Référence CVE CVE-2025-21880 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-0969Multiples vulnérabilités dans les produits VMware

d?id=CVE-2025-21835 Référence CVE CVE-2025-21836 https://www.cve.org/CVERecord?id=CVE-2025-21836 Référence CVE CVE-2025-21838 https://www.cve.org/CVERecord?id=CVE-2025-21838 Référence CVE CVE-2025-21839 https://www.cve.org/CVERecord?id=CVE-2025-21839 Référence CVE CVE-2025-21844 https://www.cve.org/CVERecord?id=CVE-2025-21844 Référence CVE CVE-2025-21846 https://www.cve.org/CVERecord?id=CVE-2025-21846 Référence CVE CVE-2025-21847 https://www.cve.org/CVERecord?id=CVE-2025-21847 Référence CVE CVE-2025-21848 https://www.cve.org/CVERecord?id=CVE-2025-21848 Référence CVE CVE-2025-21853 https://www.cve.org/CVERecord?id=CVE-2025-21853 Référence CVE CVE-2025-21854 https://www.cve.org/CVERecord?id=CVE-2025-21854 Référence CVE CVE-2025-21855 https://www.cve.org/CVERecord?id=CVE-2025-21855 Référence CVE CVE-2025-21856 https://www.cve.org/CVERecord?id=CVE-2025-21856 Référence CVE CVE-2025-21857 https://www.cve.org/CVERecord?id=CVE-2025-21857 Référence CVE CVE-2025-21858 https://www.cve.org/CVERecord?id=CVE-2025-21858 Référence CVE CVE-2025-21859 https://www.cve.org/CVERecord?id=CVE-2025-21859 Référence CVE CVE-2025-21861 https://www.cve.org/CVERecord?id=CVE-2025-21861 Référence CVE CVE-2025-21862 https://www.cve.org/CVERecord?id=CVE-2025-21862 Référence CVE CVE-2025-21863 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-0758Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2025-21835 Référence CVE CVE-2025-21836 https://www.cve.org/CVERecord?id=CVE-2025-21836 Référence CVE CVE-2025-21838 https://www.cve.org/CVERecord?id=CVE-2025-21838 Référence CVE CVE-2025-21839 https://www.cve.org/CVERecord?id=CVE-2025-21839 Référence CVE CVE-2025-21844 https://www.cve.org/CVERecord?id=CVE-2025-21844 Référence CVE CVE-2025-21846 https://www.cve.org/CVERecord?id=CVE-2025-21846 Référence CVE CVE-2025-21847 https://www.cve.org/CVERecord?id=CVE-2025-21847 Référence CVE CVE-2025-21848 https://www.cve.org/CVERecord?id=CVE-2025-21848 Référence CVE CVE-2025-21853 https://www.cve.org/CVERecord?id=CVE-2025-21853 Référence CVE CVE-2025-21854 https://www.cve.org/CVERecord?id=CVE-2025-21854 Référence CVE CVE-2025-21855 https://www.cve.org/CVERecord?id=CVE-2025-21855 Référence CVE CVE-2025-21856 https://www.cve.org/CVERecord?id=CVE-2025-21856 Référence CVE CVE-2025-21857 https://www.cve.org/CVERecord?id=CVE-2025-21857 Référence CVE CVE-2025-21858 https://www.cve.org/CVERecord?id=CVE-2025-21858 Référence CVE CVE-2025-21859 https://www.cve.org/CVERecord?id=CVE-2025-21859 Référence CVE CVE-2025-21861 https://www.cve.org/CVERecord?id=CVE-2025-21861 Référence CVE CVE-2025-21862 https://www.cve.org/CVERecord?id=CVE-2025-21862 Référence CVE CVE-2025-21863 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-0745Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2024-36357 Référence CVE CVE-2024-39298 https://www.cve.org/CVERecord?id=CVE-2024-39298 Référence CVE CVE-2024-42134 https://www.cve.org/CVERecord?id=CVE-2024-42134 Référence CVE CVE-2024-44963 https://www.cve.org/CVERecord?id=CVE-2024-44963 Référence CVE CVE-2024-49861 https://www.cve.org/CVERecord?id=CVE-2024-49861 Référence CVE CVE-2024-49996 https://www.cve.org/CVERecord?id=CVE-2024-49996 Référence CVE CVE-2024-56742 https://www.cve.org/CVERecord?id=CVE-2024-56742 Référence CVE CVE-2024-57947 https://www.cve.org/CVERecord?id=CVE-2024-57947 Référence CVE CVE-2025-21839 https://www.cve.org/CVERecord?id=CVE-2025-21839 Référence CVE CVE-2025-21854 https://www.cve.org/CVERecord?id=CVE-2025-21854 Référence CVE CVE-2025-21872 https://www.cve.org/CVERecord?id=CVE-2025-21872 Référence CVE CVE-2025-22090 https://www.cve.org/CVERecord?id=CVE-2025-22090 Référence CVE CVE-2025-23163 https://www.cve.org/CVERecord?id=CVE-2025-23163 Référence CVE CVE-2025-37798 https://www.cve.org/CVERecord?id=CVE-2025-37798 Référence CVE CVE-2025-37856 https://www.cve.org/CVERecord?id=CVE-2025-37856 Référence CVE CVE-2025-37864 https://www.cve.org/CVERecord?id=CVE-2025-37864 Référence CVE CVE-2025-37885 https://www.cve.org/CVERecord?id=CVE-2025-37885 Référence CVE CVE-2025-37920 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-0743Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2025-21835 Référence CVE CVE-2025-21836 https://www.cve.org/CVERecord?id=CVE-2025-21836 Référence CVE CVE-2025-21838 https://www.cve.org/CVERecord?id=CVE-2025-21838 Référence CVE CVE-2025-21839 https://www.cve.org/CVERecord?id=CVE-2025-21839 Référence CVE CVE-2025-21844 https://www.cve.org/CVERecord?id=CVE-2025-21844 Référence CVE CVE-2025-21846 https://www.cve.org/CVERecord?id=CVE-2025-21846 Référence CVE CVE-2025-21847 https://www.cve.org/CVERecord?id=CVE-2025-21847 Référence CVE CVE-2025-21848 https://www.cve.org/CVERecord?id=CVE-2025-21848 Référence CVE CVE-2025-21853 https://www.cve.org/CVERecord?id=CVE-2025-21853 Référence CVE CVE-2025-21854 https://www.cve.org/CVERecord?id=CVE-2025-21854 Référence CVE CVE-2025-21855 https://www.cve.org/CVERecord?id=CVE-2025-21855 Référence CVE CVE-2025-21856 https://www.cve.org/CVERecord?id=CVE-2025-21856 Référence CVE CVE-2025-21857 https://www.cve.org/CVERecord?id=CVE-2025-21857 Référence CVE CVE-2025-21858 https://www.cve.org/CVERecord?id=CVE-2025-21858 Référence CVE CVE-2025-21859 https://www.cve.org/CVERecord?id=CVE-2025-21859 Référence CVE CVE-2025-21861 https://www.cve.org/CVERecord?id=CVE-2025-21861 Référence CVE CVE-2025-21862 https://www.cve.org/CVERecord?id=CVE-2025-21862 Référence CVE CVE-2025-21863 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-0723Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2024-58100 Référence CVE CVE-2024-58237 https://www.cve.org/CVERecord?id=CVE-2024-58237 Référence CVE CVE-2025-21629 https://www.cve.org/CVERecord?id=CVE-2025-21629 Référence CVE CVE-2025-21658 https://www.cve.org/CVERecord?id=CVE-2025-21658 Référence CVE CVE-2025-21701 https://www.cve.org/CVERecord?id=CVE-2025-21701 Référence CVE CVE-2025-21702 https://www.cve.org/CVERecord?id=CVE-2025-21702 Référence CVE CVE-2025-21720 https://www.cve.org/CVERecord?id=CVE-2025-21720 Référence CVE CVE-2025-21731 https://www.cve.org/CVERecord?id=CVE-2025-21731 Référence CVE CVE-2025-21839 https://www.cve.org/CVERecord?id=CVE-2025-21839 Référence CVE CVE-2025-21854 https://www.cve.org/CVERecord?id=CVE-2025-21854 Référence CVE CVE-2025-21868 https://www.cve.org/CVERecord?id=CVE-2025-21868 Référence CVE CVE-2025-21872 https://www.cve.org/CVERecord?id=CVE-2025-21872 Référence CVE CVE-2025-21881 https://www.cve.org/CVERecord?id=CVE-2025-21881 Référence CVE CVE-2025-21898 https://www.cve.org/CVERecord?id=CVE-2025-21898 Référence CVE CVE-2025-21899 https://www.cve.org/CVERecord?id=CVE-2025-21899 Référence CVE CVE-2025-21920 https://www.cve.org/CVERecord?id=CVE-2025-21920 Référence CVE CVE-2025-21928 https://www.cve.org/CVERecord?id=CVE-2025-21928 Référence CVE CVE-2025-21938 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-0721Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2025-21835 Référence CVE CVE-2025-21836 https://www.cve.org/CVERecord?id=CVE-2025-21836 Référence CVE CVE-2025-21838 https://www.cve.org/CVERecord?id=CVE-2025-21838 Référence CVE CVE-2025-21839 https://www.cve.org/CVERecord?id=CVE-2025-21839 Référence CVE CVE-2025-21844 https://www.cve.org/CVERecord?id=CVE-2025-21844 Référence CVE CVE-2025-21846 https://www.cve.org/CVERecord?id=CVE-2025-21846 Référence CVE CVE-2025-21847 https://www.cve.org/CVERecord?id=CVE-2025-21847 Référence CVE CVE-2025-21848 https://www.cve.org/CVERecord?id=CVE-2025-21848 Référence CVE CVE-2025-21853 https://www.cve.org/CVERecord?id=CVE-2025-21853 Référence CVE CVE-2025-21854 https://www.cve.org/CVERecord?id=CVE-2025-21854 Référence CVE CVE-2025-21855 https://www.cve.org/CVERecord?id=CVE-2025-21855 Référence CVE CVE-2025-21856 https://www.cve.org/CVERecord?id=CVE-2025-21856 Référence CVE CVE-2025-21857 https://www.cve.org/CVERecord?id=CVE-2025-21857 Référence CVE CVE-2025-21858 https://www.cve.org/CVERecord?id=CVE-2025-21858 Référence CVE CVE-2025-21859 https://www.cve.org/CVERecord?id=CVE-2025-21859 Référence CVE CVE-2025-21861 https://www.cve.org/CVERecord?id=CVE-2025-21861 Référence CVE CVE-2025-21862 https://www.cve.org/CVERecord?id=CVE-2025-21862 Référence CVE CVE-2025-21863 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-0529Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2025-21836 Référence CVE CVE-2025-21837 https://www.cve.org/CVERecord?id=CVE-2025-21837 Référence CVE CVE-2025-21844 https://www.cve.org/CVERecord?id=CVE-2025-21844 Référence CVE CVE-2025-21846 https://www.cve.org/CVERecord?id=CVE-2025-21846 Référence CVE CVE-2025-21847 https://www.cve.org/CVERecord?id=CVE-2025-21847 Référence CVE CVE-2025-21848 https://www.cve.org/CVERecord?id=CVE-2025-21848 Référence CVE CVE-2025-21850 https://www.cve.org/CVERecord?id=CVE-2025-21850 Référence CVE CVE-2025-21852 https://www.cve.org/CVERecord?id=CVE-2025-21852 Référence CVE CVE-2025-21853 https://www.cve.org/CVERecord?id=CVE-2025-21853 Référence CVE CVE-2025-21854 https://www.cve.org/CVERecord?id=CVE-2025-21854 Référence CVE CVE-2025-21855 https://www.cve.org/CVERecord?id=CVE-2025-21855 Référence CVE CVE-2025-21856 https://www.cve.org/CVERecord?id=CVE-2025-21856 Référence CVE CVE-2025-21857 https://www.cve.org/CVERecord?id=CVE-2025-21857 Référence CVE CVE-2025-21858 https://www.cve.org/CVERecord?id=CVE-2025-21858 Référence CVE CVE-2025-21859 https://www.cve.org/CVERecord?id=CVE-2025-21859 Référence CVE CVE-2025-21861 https://www.cve.org/CVERecord?id=CVE-2025-21861 Référence CVE CVE-2025-21862 https://www.cve.org/CVERecord?id=CVE-2025-21862 Référence CVE CVE-2025-21863 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-0509Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2025-21836 Référence CVE CVE-2025-21838 https://www.cve.org/CVERecord?id=CVE-2025-21838 Référence CVE CVE-2025-21844 https://www.cve.org/CVERecord?id=CVE-2025-21844 Référence CVE CVE-2025-21846 https://www.cve.org/CVERecord?id=CVE-2025-21846 Référence CVE CVE-2025-21847 https://www.cve.org/CVERecord?id=CVE-2025-21847 Référence CVE CVE-2025-21848 https://www.cve.org/CVERecord?id=CVE-2025-21848 Référence CVE CVE-2025-21850 https://www.cve.org/CVERecord?id=CVE-2025-21850 Référence CVE CVE-2025-21852 https://www.cve.org/CVERecord?id=CVE-2025-21852 Référence CVE CVE-2025-21853 https://www.cve.org/CVERecord?id=CVE-2025-21853 Référence CVE CVE-2025-21854 https://www.cve.org/CVERecord?id=CVE-2025-21854 Référence CVE CVE-2025-21855 https://www.cve.org/CVERecord?id=CVE-2025-21855 Référence CVE CVE-2025-21856 https://www.cve.org/CVERecord?id=CVE-2025-21856 Référence CVE CVE-2025-21857 https://www.cve.org/CVERecord?id=CVE-2025-21857 Référence CVE CVE-2025-21858 https://www.cve.org/CVERecord?id=CVE-2025-21858 Référence CVE CVE-2025-21859 https://www.cve.org/CVERecord?id=CVE-2025-21859 Référence CVE CVE-2025-21861 https://www.cve.org/CVERecord?id=CVE-2025-21861 Référence CVE CVE-2025-21862 https://www.cve.org/CVERecord?id=CVE-2025-21862 Référence CVE CVE-2025-21863 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-0482Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2025-21707 Référence CVE CVE-2025-21758 https://www.cve.org/CVERecord?id=CVE-2025-21758 Référence CVE CVE-2025-21768 https://www.cve.org/CVERecord?id=CVE-2025-21768 Référence CVE CVE-2025-21792 https://www.cve.org/CVERecord?id=CVE-2025-21792 Référence CVE CVE-2025-21808 https://www.cve.org/CVERecord?id=CVE-2025-21808 Référence CVE CVE-2025-21812 https://www.cve.org/CVERecord?id=CVE-2025-21812 Référence CVE CVE-2025-21833 https://www.cve.org/CVERecord?id=CVE-2025-21833 Référence CVE CVE-2025-21852 https://www.cve.org/CVERecord?id=CVE-2025-21852 Référence CVE CVE-2025-21853 https://www.cve.org/CVERecord?id=CVE-2025-21853 Référence CVE CVE-2025-21854 https://www.cve.org/CVERecord?id=CVE-2025-21854 Référence CVE CVE-2025-21867 https://www.cve.org/CVERecord?id=CVE-2025-21867 Référence CVE CVE-2025-21904 https://www.cve.org/CVERecord?id=CVE-2025-21904 Référence CVE CVE-2025-21925 https://www.cve.org/CVERecord?id=CVE-2025-21925 Référence CVE CVE-2025-21926 https://www.cve.org/CVERecord?id=CVE-2025-21926 Référence CVE CVE-2025-21931 https://www.cve.org/CVERecord?id=CVE-2025-21931 Référence CVE CVE-2025-21962 https://www.cve.org/CVERecord?id=CVE-2025-21962 Référence CVE CVE-2025-21963 https://www.cve.org/CVERecord?id=CVE-2025-21963 Référence CVE CVE-2025-21964 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-0465Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2025-21768 Référence CVE CVE-2025-21792 https://www.cve.org/CVERecord?id=CVE-2025-21792 Référence CVE CVE-2025-21806 https://www.cve.org/CVERecord?id=CVE-2025-21806 Référence CVE CVE-2025-21808 https://www.cve.org/CVERecord?id=CVE-2025-21808 Référence CVE CVE-2025-21812 https://www.cve.org/CVERecord?id=CVE-2025-21812 Référence CVE CVE-2025-21833 https://www.cve.org/CVERecord?id=CVE-2025-21833 Référence CVE CVE-2025-21836 https://www.cve.org/CVERecord?id=CVE-2025-21836 Référence CVE CVE-2025-21852 https://www.cve.org/CVERecord?id=CVE-2025-21852 Référence CVE CVE-2025-21853 https://www.cve.org/CVERecord?id=CVE-2025-21853 Référence CVE CVE-2025-21854 https://www.cve.org/CVERecord?id=CVE-2025-21854 Référence CVE CVE-2025-21863 https://www.cve.org/CVERecord?id=CVE-2025-21863 Référence CVE CVE-2025-21867 https://www.cve.org/CVERecord?id=CVE-2025-21867 Référence CVE CVE-2025-21873 https://www.cve.org/CVERecord?id=CVE-2025-21873 Référence CVE CVE-2025-21875 https://www.cve.org/CVERecord?id=CVE-2025-21875 Référence CVE CVE-2025-21881 https://www.cve.org/CVERecord?id=CVE-2025-21881 Référence CVE CVE-2025-21884 https://www.cve.org/CVERecord?id=CVE-2025-21884 Référence CVE CVE-2025-21887 https://www.cve.org/CVERecord?id=CVE-2025-21887 Référence CVE CVE-2025-21889 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-0449Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2025-21792 Référence CVE CVE-2025-21806 https://www.cve.org/CVERecord?id=CVE-2025-21806 Référence CVE CVE-2025-21808 https://www.cve.org/CVERecord?id=CVE-2025-21808 Référence CVE CVE-2025-21812 https://www.cve.org/CVERecord?id=CVE-2025-21812 Référence CVE CVE-2025-21833 https://www.cve.org/CVERecord?id=CVE-2025-21833 Référence CVE CVE-2025-21836 https://www.cve.org/CVERecord?id=CVE-2025-21836 Référence CVE CVE-2025-21839 https://www.cve.org/CVERecord?id=CVE-2025-21839 Référence CVE CVE-2025-21852 https://www.cve.org/CVERecord?id=CVE-2025-21852 Référence CVE CVE-2025-21853 https://www.cve.org/CVERecord?id=CVE-2025-21853 Référence CVE CVE-2025-21854 https://www.cve.org/CVERecord?id=CVE-2025-21854 Référence CVE CVE-2025-21862 https://www.cve.org/CVERecord?id=CVE-2025-21862 Référence CVE CVE-2025-21863 https://www.cve.org/CVERecord?id=CVE-2025-21863 Référence CVE CVE-2025-21867 https://www.cve.org/CVERecord?id=CVE-2025-21867 Référence CVE CVE-2025-21873 https://www.cve.org/CVERecord?id=CVE-2025-21873 Référence CVE CVE-2025-21875 https://www.cve.org/CVERecord?id=CVE-2025-21875 Référence CVE CVE-2025-21881 https://www.cve.org/CVERecord?id=CVE-2025-21881 Référence CVE CVE-2025-21884 https://www.cve.org/CVERecord?id=CVE-2025-21884 Référence CVE CVE-2025-21886 https://www.cve.org/CVERecord?id=

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2025-002415Linux の Linux Kernel における NULL ポインタデリファレンスに関する脆弱性

Linux の Linux Kernel には、NULL ポインタデリファレンスに関する脆弱性が存在します。

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: < 6.4, 6.6.80 ≤ 6.6.*, 6.12.17 ≤ 6.12.*, 6.13.5 ≤ 6.13.*, 6.14 ≤ *
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 12 Mar 2025 · Last source change 11 May 2026, 21:07 UTC · CWE-476 · NULL Pointer Dereference

CVE recordCVE.org · 5.2
CVSS sourceNIST NVD
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-2025-7594
Product sourceVendor CSAF · SUSE Product Security Team
Remediation sourceVendor CSAF · SUSE Product Security Team
CWE sourceCISA ADP
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 ↗

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
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-2025-21854 · cve.blacktree.nl