BlackTreeCVE Intelligence
← Back to the CVE catalogue
Full vulnerability report · 2026
CVE-2026-31659High confidence

batman-adv: reject oversized global TT response buffers

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 0.76% 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.6.12.85-1Debian Security Tracker ↗Source updated 6 Oct 2026
Debian bookwormbookworm · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.6.1.170-1Debian Security Tracker ↗Source updated 6 Oct 2026
Debian forkyforky · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.6.19.13-1Debian Security Tracker ↗Source updated 6 Oct 2026
Debian sidsid · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.6.19.13-1Debian Security Tracker ↗Source updated 6 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinuxAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-awsAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-azureAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-azure-fdeAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-azure-nvidiaAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-gcpAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-gkeAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-gkeopAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-ibmAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-lowlatencyAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-nvidiaAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-nvidia-lowlatencyAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-nvidia-tegraAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-oem-6.11Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-oracleAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-raspiAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-raspi-realtimeAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-realtimeAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-riscvAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-xilinxAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

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

1 current
CVE-2026-31659 · CSAF 2.0 · revision 9 · interimSUSE Product Security TeamCVE-2026-31659
327 known affected

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

  • kernel-default as component of SUSE Linux Enterprise High Performance Computing 12 SP4
  • kernel-default-base as component of SUSE Linux Enterprise High Performance Computing 12 SP4
  • kernel-default-devel as component of SUSE Linux Enterprise High Performance Computing 12 SP4
  • kernel-default-man as component of SUSE Linux Enterprise High Performance Computing 12 SP4
  • kernel-devel as component of SUSE Linux Enterprise High Performance Computing 12 SP4
  • kernel-macros as component of SUSE Linux Enterprise High Performance Computing 12 SP4
  • kernel-source as component of SUSE Linux Enterprise High Performance Computing 12 SP4
  • cluster-md-kmp-default as component of SUSE Linux Enterprise High Performance Computing 12 SP5
  • dlm-kmp-default as component of SUSE Linux Enterprise High Performance Computing 12 SP5
  • gfs2-kmp-default as component of SUSE Linux Enterprise High Performance Computing 12 SP5
  • kernel-default as component of SUSE Linux Enterprise High Performance Computing 12 SP5
  • kernel-default-base as component of SUSE Linux Enterprise High Performance Computing 12 SP5
Summary
In the Linux kernel, the following vulnerability has been resolved: batman-adv: reject oversized global TT response buffers batadv_tt_prepare_tvlv_global_data() builds the allocation length for a global TT response in 16-bit temporaries. When a remote originator advertises a large enough global TT, the TT payload length plus the VLAN header offset can exceed 65535 and wrap before kmalloc(). The full-table response path still uses the original TT payload length when it fills tt_change, so the wrapped allocation is too small and batadv_tt_prepare_tvlv_global_data() writes past the end of the heap object before the later packet-size check runs. Fix this by rejecting TT responses whose TVLV value length cannot fit in the 16-bit TVLV payload length field.
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-2026-25552

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: batman-adv: reject oversized global TT response buffers batadv_tt_prepare_tvlv_global_data() builds the allocation length for a global TT response in 16-bit temporaries. When a remote originator advertises a large enough global TT, the TT payload length plus the VLAN header offset can exceed 65535 and wrap before kmalloc(). The full-table response path still uses the original TT payload length when it fills tt_change, so the wrapped allocation is too small and batadv_tt_prepare_tvlv_global_data() writes past the end of the heap object before the later packet-size check runs. Fix this by rejecting TT responses whose TVLV value length cannot fit in the 16-bit TVLV payload length field.

What

In the Linux kernel, the following vulnerability has been resolved: batman-adv: reject oversized global TT response buffers batadv_tt_prepare_tvlv_global_data() builds the allocation length for a global TT response in 16-bit temporaries. When a remote originator advertises a large enough global TT, the TT payload length plus the VLAN header offset can exceed 65535 and wrap before kmalloc(). The full-table response path still uses the original TT payload length when it fills tt_change, so the wrapped allocation is too small and batadv_tt_prepare_tvlv_global_data() writes past the end of the heap object before the later packet-size check runs. Fix this by rejecting TT responses whose TVLV value length cannot fit in the 16-bit TVLV payload length field.

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: batman-adv: reject oversized global TT response buffers batadv_tt_prepare_tvlv_global_data() builds the allocation length for a global TT response in 16-bit temporaries. When a remote originator advertises a large enough global TT, the TT payload length plus the VLAN header offset can exceed 65535 and wrap before kmalloc(). The full-table response path still uses the original TT payload length when it fills tt_change, so the wrapped allocation is too small and batadv_tt_prepare_tvlv_global_data() writes past the end of the heap object before the later packet-size check runs. Fix this by rejecting TT responses whose TVLV value length cannot fit in the 16-bit TVLV payload length field.

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-2026-1279Linux Kernel: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um nicht näher spezifizierte Angriffe durchzuführen, welche zu einem Denial-of-Service-Zustand, einer Rechteausweitung, der Ausführung von Code oder einer Speicherbeschädigung führen könnten.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20260429Security Bulletin 29 Apr 2026

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 29 Apr 2026, published on 29 April 2026. Open the linked bulletin for the product, severity and reference information published in that issue.

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

d?id=CVE-2026-31634 Référence CVE CVE-2026-31636 https://www.cve.org/CVERecord?id=CVE-2026-31636 Référence CVE CVE-2026-31637 https://www.cve.org/CVERecord?id=CVE-2026-31637 Référence CVE CVE-2026-31642 https://www.cve.org/CVERecord?id=CVE-2026-31642 Référence CVE CVE-2026-31649 https://www.cve.org/CVERecord?id=CVE-2026-31649 Référence CVE CVE-2026-31651 https://www.cve.org/CVERecord?id=CVE-2026-31651 Référence CVE CVE-2026-31656 https://www.cve.org/CVERecord?id=CVE-2026-31656 Référence CVE CVE-2026-31657 https://www.cve.org/CVERecord?id=CVE-2026-31657 Référence CVE CVE-2026-31658 https://www.cve.org/CVERecord?id=CVE-2026-31658 Référence CVE CVE-2026-31659 https://www.cve.org/CVERecord?id=CVE-2026-31659 Référence CVE CVE-2026-31660 https://www.cve.org/CVERecord?id=CVE-2026-31660 Référence CVE CVE-2026-31661 https://www.cve.org/CVERecord?id=CVE-2026-31661 Référence CVE CVE-2026-31662 https://www.cve.org/CVERecord?id=CVE-2026-31662 Référence CVE CVE-2026-31664 https://www.cve.org/CVERecord?id=CVE-2026-31664 Référence CVE CVE-2026-31665 https://www.cve.org/CVERecord?id=CVE-2026-31665 Référence CVE CVE-2026-31667 https://www.cve.org/CVERecord?id=CVE-2026-31667 Référence CVE CVE-2026-31668 https://www.cve.org/CVERecord?id=CVE-2026-31668 Référence CVE CVE-2026-31670 https://www.cve.org/CVERecord?id=

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

d?id=CVE-2026-31624 Référence CVE CVE-2026-31625 https://www.cve.org/CVERecord?id=CVE-2026-31625 Référence CVE CVE-2026-31626 https://www.cve.org/CVERecord?id=CVE-2026-31626 Référence CVE CVE-2026-31627 https://www.cve.org/CVERecord?id=CVE-2026-31627 Référence CVE CVE-2026-31628 https://www.cve.org/CVERecord?id=CVE-2026-31628 Référence CVE CVE-2026-31629 https://www.cve.org/CVERecord?id=CVE-2026-31629 Référence CVE CVE-2026-31651 https://www.cve.org/CVERecord?id=CVE-2026-31651 Référence CVE CVE-2026-31656 https://www.cve.org/CVERecord?id=CVE-2026-31656 Référence CVE CVE-2026-31657 https://www.cve.org/CVERecord?id=CVE-2026-31657 Référence CVE CVE-2026-31659 https://www.cve.org/CVERecord?id=CVE-2026-31659 Référence CVE CVE-2026-31660 https://www.cve.org/CVERecord?id=CVE-2026-31660 Référence CVE CVE-2026-31661 https://www.cve.org/CVERecord?id=CVE-2026-31661 Référence CVE CVE-2026-31667 https://www.cve.org/CVERecord?id=CVE-2026-31667 Référence CVE CVE-2026-31672 https://www.cve.org/CVERecord?id=CVE-2026-31672 Référence CVE CVE-2026-31677 https://www.cve.org/CVERecord?id=CVE-2026-31677 Référence CVE CVE-2026-31687 https://www.cve.org/CVERecord?id=CVE-2026-31687 Référence CVE CVE-2026-31697 https://www.cve.org/CVERecord?id=CVE-2026-31697 Référence CVE CVE-2026-31698 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-2026-31448 Référence CVE CVE-2026-31501 https://www.cve.org/CVERecord?id=CVE-2026-31501 Référence CVE CVE-2026-31589 https://www.cve.org/CVERecord?id=CVE-2026-31589 Référence CVE CVE-2026-31607 https://www.cve.org/CVERecord?id=CVE-2026-31607 Référence CVE CVE-2026-31633 https://www.cve.org/CVERecord?id=CVE-2026-31633 Référence CVE CVE-2026-31636 https://www.cve.org/CVERecord?id=CVE-2026-31636 Référence CVE CVE-2026-31637 https://www.cve.org/CVERecord?id=CVE-2026-31637 Référence CVE CVE-2026-31649 https://www.cve.org/CVERecord?id=CVE-2026-31649 Référence CVE CVE-2026-31657 https://www.cve.org/CVERecord?id=CVE-2026-31657 Référence CVE CVE-2026-31659 https://www.cve.org/CVERecord?id=CVE-2026-31659 Référence CVE CVE-2026-31668 https://www.cve.org/CVERecord?id=CVE-2026-31668 Référence CVE CVE-2026-31682 https://www.cve.org/CVERecord?id=CVE-2026-31682 Référence CVE CVE-2026-31685 https://www.cve.org/CVERecord?id=CVE-2026-31685 Référence CVE CVE-2026-31705 https://www.cve.org/CVERecord?id=CVE-2026-31705 Référence CVE CVE-2026-43011 https://www.cve.org/CVERecord?id=CVE-2026-43011 Référence CVE CVE-2026-43037 https://www.cve.org/CVERecord?id=CVE-2026-43037 Référence CVE CVE-2026-43038 https://www.cve.org/CVERecord?id=CVE-2026-43038 Référence CVE CVE-2026-43083 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0954Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-31645 Référence CVE CVE-2026-31646 https://www.cve.org/CVERecord?id=CVE-2026-31646 Référence CVE CVE-2026-31648 https://www.cve.org/CVERecord?id=CVE-2026-31648 Référence CVE CVE-2026-31649 https://www.cve.org/CVERecord?id=CVE-2026-31649 Référence CVE CVE-2026-31651 https://www.cve.org/CVERecord?id=CVE-2026-31651 Référence CVE CVE-2026-31655 https://www.cve.org/CVERecord?id=CVE-2026-31655 Référence CVE CVE-2026-31656 https://www.cve.org/CVERecord?id=CVE-2026-31656 Référence CVE CVE-2026-31657 https://www.cve.org/CVERecord?id=CVE-2026-31657 Référence CVE CVE-2026-31658 https://www.cve.org/CVERecord?id=CVE-2026-31658 Référence CVE CVE-2026-31659 https://www.cve.org/CVERecord?id=CVE-2026-31659 Référence CVE CVE-2026-31660 https://www.cve.org/CVERecord?id=CVE-2026-31660 Référence CVE CVE-2026-31661 https://www.cve.org/CVERecord?id=CVE-2026-31661 Référence CVE CVE-2026-31662 https://www.cve.org/CVERecord?id=CVE-2026-31662 Référence CVE CVE-2026-31664 https://www.cve.org/CVERecord?id=CVE-2026-31664 Référence CVE CVE-2026-31665 https://www.cve.org/CVERecord?id=CVE-2026-31665 Référence CVE CVE-2026-31667 https://www.cve.org/CVERecord?id=CVE-2026-31667 Référence CVE CVE-2026-31668 https://www.cve.org/CVERecord?id=CVE-2026-31668 Référence CVE CVE-2026-31669 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0927Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-31623 Référence CVE CVE-2026-31624 https://www.cve.org/CVERecord?id=CVE-2026-31624 Référence CVE CVE-2026-31625 https://www.cve.org/CVERecord?id=CVE-2026-31625 Référence CVE CVE-2026-31626 https://www.cve.org/CVERecord?id=CVE-2026-31626 Référence CVE CVE-2026-31627 https://www.cve.org/CVERecord?id=CVE-2026-31627 Référence CVE CVE-2026-31646 https://www.cve.org/CVERecord?id=CVE-2026-31646 Référence CVE CVE-2026-31647 https://www.cve.org/CVERecord?id=CVE-2026-31647 Référence CVE CVE-2026-31651 https://www.cve.org/CVERecord?id=CVE-2026-31651 Référence CVE CVE-2026-31657 https://www.cve.org/CVERecord?id=CVE-2026-31657 Référence CVE CVE-2026-31659 https://www.cve.org/CVERecord?id=CVE-2026-31659 Référence CVE CVE-2026-31660 https://www.cve.org/CVERecord?id=CVE-2026-31660 Référence CVE CVE-2026-31661 https://www.cve.org/CVERecord?id=CVE-2026-31661 Référence CVE CVE-2026-31663 https://www.cve.org/CVERecord?id=CVE-2026-31663 Référence CVE CVE-2026-31664 https://www.cve.org/CVERecord?id=CVE-2026-31664 Référence CVE CVE-2026-31665 https://www.cve.org/CVERecord?id=CVE-2026-31665 Référence CVE CVE-2026-31667 https://www.cve.org/CVERecord?id=CVE-2026-31667 Référence CVE CVE-2026-31670 https://www.cve.org/CVERecord?id=CVE-2026-31670 Référence CVE CVE-2026-31672 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0926Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-31645 Référence CVE CVE-2026-31646 https://www.cve.org/CVERecord?id=CVE-2026-31646 Référence CVE CVE-2026-31648 https://www.cve.org/CVERecord?id=CVE-2026-31648 Référence CVE CVE-2026-31649 https://www.cve.org/CVERecord?id=CVE-2026-31649 Référence CVE CVE-2026-31651 https://www.cve.org/CVERecord?id=CVE-2026-31651 Référence CVE CVE-2026-31655 https://www.cve.org/CVERecord?id=CVE-2026-31655 Référence CVE CVE-2026-31656 https://www.cve.org/CVERecord?id=CVE-2026-31656 Référence CVE CVE-2026-31657 https://www.cve.org/CVERecord?id=CVE-2026-31657 Référence CVE CVE-2026-31658 https://www.cve.org/CVERecord?id=CVE-2026-31658 Référence CVE CVE-2026-31659 https://www.cve.org/CVERecord?id=CVE-2026-31659 Référence CVE CVE-2026-31660 https://www.cve.org/CVERecord?id=CVE-2026-31660 Référence CVE CVE-2026-31661 https://www.cve.org/CVERecord?id=CVE-2026-31661 Référence CVE CVE-2026-31662 https://www.cve.org/CVERecord?id=CVE-2026-31662 Référence CVE CVE-2026-31664 https://www.cve.org/CVERecord?id=CVE-2026-31664 Référence CVE CVE-2026-31665 https://www.cve.org/CVERecord?id=CVE-2026-31665 Référence CVE CVE-2026-31667 https://www.cve.org/CVERecord?id=CVE-2026-31667 Référence CVE CVE-2026-31668 https://www.cve.org/CVERecord?id=CVE-2026-31668 Référence CVE CVE-2026-31669 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0898Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-31418 Référence CVE CVE-2026-31436 https://www.cve.org/CVERecord?id=CVE-2026-31436 Référence CVE CVE-2026-31448 https://www.cve.org/CVERecord?id=CVE-2026-31448 Référence CVE CVE-2026-31478 https://www.cve.org/CVERecord?id=CVE-2026-31478 Référence CVE CVE-2026-31607 https://www.cve.org/CVERecord?id=CVE-2026-31607 Référence CVE CVE-2026-31635 https://www.cve.org/CVERecord?id=CVE-2026-31635 Référence CVE CVE-2026-31637 https://www.cve.org/CVERecord?id=CVE-2026-31637 Référence CVE CVE-2026-31649 https://www.cve.org/CVERecord?id=CVE-2026-31649 Référence CVE CVE-2026-31657 https://www.cve.org/CVERecord?id=CVE-2026-31657 Référence CVE CVE-2026-31659 https://www.cve.org/CVERecord?id=CVE-2026-31659 Référence CVE CVE-2026-31668 https://www.cve.org/CVERecord?id=CVE-2026-31668 Référence CVE CVE-2026-31669 https://www.cve.org/CVERecord?id=CVE-2026-31669 Référence CVE CVE-2026-31682 https://www.cve.org/CVERecord?id=CVE-2026-31682 Référence CVE CVE-2026-31685 https://www.cve.org/CVERecord?id=CVE-2026-31685 Référence CVE CVE-2026-31718 https://www.cve.org/CVERecord?id=CVE-2026-31718 Référence CVE CVE-2026-43011 https://www.cve.org/CVERecord?id=CVE-2026-43011 Référence CVE CVE-2026-43037 https://www.cve.org/CVERecord?id=CVE-2026-43037 Référence CVE CVE-2026-43038 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0861Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-31625 Référence CVE CVE-2026-31626 https://www.cve.org/CVERecord?id=CVE-2026-31626 Référence CVE CVE-2026-31627 https://www.cve.org/CVERecord?id=CVE-2026-31627 Référence CVE CVE-2026-31628 https://www.cve.org/CVERecord?id=CVE-2026-31628 Référence CVE CVE-2026-31629 https://www.cve.org/CVERecord?id=CVE-2026-31629 Référence CVE CVE-2026-31635 https://www.cve.org/CVERecord?id=CVE-2026-31635 Référence CVE CVE-2026-31637 https://www.cve.org/CVERecord?id=CVE-2026-31637 Référence CVE CVE-2026-31649 https://www.cve.org/CVERecord?id=CVE-2026-31649 Référence CVE CVE-2026-31657 https://www.cve.org/CVERecord?id=CVE-2026-31657 Référence CVE CVE-2026-31659 https://www.cve.org/CVERecord?id=CVE-2026-31659 Référence CVE CVE-2026-31668 https://www.cve.org/CVERecord?id=CVE-2026-31668 Référence CVE CVE-2026-31669 https://www.cve.org/CVERecord?id=CVE-2026-31669 Référence CVE CVE-2026-31682 https://www.cve.org/CVERecord?id=CVE-2026-31682 Référence CVE CVE-2026-31685 https://www.cve.org/CVERecord?id=CVE-2026-31685 Référence CVE CVE-2026-31686 https://www.cve.org/CVERecord?id=CVE-2026-31686 Référence CVE CVE-2026-31687 https://www.cve.org/CVERecord?id=CVE-2026-31687 Référence CVE CVE-2026-31693 https://www.cve.org/CVERecord?id=CVE-2026-31693 Référence CVE CVE-2026-31694 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0831Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-31625 Référence CVE CVE-2026-31626 https://www.cve.org/CVERecord?id=CVE-2026-31626 Référence CVE CVE-2026-31627 https://www.cve.org/CVERecord?id=CVE-2026-31627 Référence CVE CVE-2026-31628 https://www.cve.org/CVERecord?id=CVE-2026-31628 Référence CVE CVE-2026-31629 https://www.cve.org/CVERecord?id=CVE-2026-31629 Référence CVE CVE-2026-31635 https://www.cve.org/CVERecord?id=CVE-2026-31635 Référence CVE CVE-2026-31637 https://www.cve.org/CVERecord?id=CVE-2026-31637 Référence CVE CVE-2026-31649 https://www.cve.org/CVERecord?id=CVE-2026-31649 Référence CVE CVE-2026-31657 https://www.cve.org/CVERecord?id=CVE-2026-31657 Référence CVE CVE-2026-31659 https://www.cve.org/CVERecord?id=CVE-2026-31659 Référence CVE CVE-2026-31668 https://www.cve.org/CVERecord?id=CVE-2026-31668 Référence CVE CVE-2026-31669 https://www.cve.org/CVERecord?id=CVE-2026-31669 Référence CVE CVE-2026-31676 https://www.cve.org/CVERecord?id=CVE-2026-31676 Référence CVE CVE-2026-31682 https://www.cve.org/CVERecord?id=CVE-2026-31682 Référence CVE CVE-2026-31685 https://www.cve.org/CVERecord?id=CVE-2026-31685 Référence CVE CVE-2026-31686 https://www.cve.org/CVERecord?id=CVE-2026-31686 Référence CVE CVE-2026-31687 https://www.cve.org/CVERecord?id=CVE-2026-31687 Référence CVE CVE-2026-31693 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0696Multiples vulnérabilités dans le noyau Linux de Debian LTS

d?id=CVE-2026-31546 Référence CVE CVE-2026-31550 https://www.cve.org/CVERecord?id=CVE-2026-31550 Référence CVE CVE-2026-31552 https://www.cve.org/CVERecord?id=CVE-2026-31552 Référence CVE CVE-2026-31555 https://www.cve.org/CVERecord?id=CVE-2026-31555 Référence CVE CVE-2026-31570 https://www.cve.org/CVERecord?id=CVE-2026-31570 Référence CVE CVE-2026-31628 https://www.cve.org/CVERecord?id=CVE-2026-31628 Référence CVE CVE-2026-31649 https://www.cve.org/CVERecord?id=CVE-2026-31649 Référence CVE CVE-2026-31651 https://www.cve.org/CVERecord?id=CVE-2026-31651 Référence CVE CVE-2026-31658 https://www.cve.org/CVERecord?id=CVE-2026-31658 Référence CVE CVE-2026-31659 https://www.cve.org/CVERecord?id=CVE-2026-31659 Référence CVE CVE-2026-31660 https://www.cve.org/CVERecord?id=CVE-2026-31660 Référence CVE CVE-2026-31661 https://www.cve.org/CVERecord?id=CVE-2026-31661 Référence CVE CVE-2026-31662 https://www.cve.org/CVERecord?id=CVE-2026-31662 Référence CVE CVE-2026-31665 https://www.cve.org/CVERecord?id=CVE-2026-31665 Référence CVE CVE-2026-31667 https://www.cve.org/CVERecord?id=CVE-2026-31667 Référence CVE CVE-2026-31668 https://www.cve.org/CVERecord?id=CVE-2026-31668 Référence CVE CVE-2026-31670 https://www.cve.org/CVERecord?id=CVE-2026-31670 Référence CVE CVE-2026-31671 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0547Multiples vulnérabilités dans le noyau Linux de Debian LTS

d?id=CVE-2026-31566 Référence CVE CVE-2026-31570 https://www.cve.org/CVERecord?id=CVE-2026-31570 Référence CVE CVE-2026-31628 https://www.cve.org/CVERecord?id=CVE-2026-31628 Référence CVE CVE-2026-31634 https://www.cve.org/CVERecord?id=CVE-2026-31634 Référence CVE CVE-2026-31649 https://www.cve.org/CVERecord?id=CVE-2026-31649 Référence CVE CVE-2026-31651 https://www.cve.org/CVERecord?id=CVE-2026-31651 Référence CVE CVE-2026-31656 https://www.cve.org/CVERecord?id=CVE-2026-31656 Référence CVE CVE-2026-31657 https://www.cve.org/CVERecord?id=CVE-2026-31657 Référence CVE CVE-2026-31658 https://www.cve.org/CVERecord?id=CVE-2026-31658 Référence CVE CVE-2026-31659 https://www.cve.org/CVERecord?id=CVE-2026-31659 Référence CVE CVE-2026-31660 https://www.cve.org/CVERecord?id=CVE-2026-31660 Référence CVE CVE-2026-31661 https://www.cve.org/CVERecord?id=CVE-2026-31661 Référence CVE CVE-2026-31662 https://www.cve.org/CVERecord?id=CVE-2026-31662 Référence CVE CVE-2026-31664 https://www.cve.org/CVERecord?id=CVE-2026-31664 Référence CVE CVE-2026-31665 https://www.cve.org/CVERecord?id=CVE-2026-31665 Référence CVE CVE-2026-31667 https://www.cve.org/CVERecord?id=CVE-2026-31667 Référence CVE CVE-2026-31668 https://www.cve.org/CVERecord?id=CVE-2026-31668 Référence CVE CVE-2026-31669 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0548Multiples vulnérabilités dans le noyau Linux de Debian

d?id=CVE-2026-31646 Référence CVE CVE-2026-31647 https://www.cve.org/CVERecord?id=CVE-2026-31647 Référence CVE CVE-2026-31648 https://www.cve.org/CVERecord?id=CVE-2026-31648 Référence CVE CVE-2026-31649 https://www.cve.org/CVERecord?id=CVE-2026-31649 Référence CVE CVE-2026-31651 https://www.cve.org/CVERecord?id=CVE-2026-31651 Référence CVE CVE-2026-31655 https://www.cve.org/CVERecord?id=CVE-2026-31655 Référence CVE CVE-2026-31656 https://www.cve.org/CVERecord?id=CVE-2026-31656 Référence CVE CVE-2026-31657 https://www.cve.org/CVERecord?id=CVE-2026-31657 Référence CVE CVE-2026-31658 https://www.cve.org/CVERecord?id=CVE-2026-31658 Référence CVE CVE-2026-31659 https://www.cve.org/CVERecord?id=CVE-2026-31659 Référence CVE CVE-2026-31660 https://www.cve.org/CVERecord?id=CVE-2026-31660 Référence CVE CVE-2026-31661 https://www.cve.org/CVERecord?id=CVE-2026-31661 Référence CVE CVE-2026-31662 https://www.cve.org/CVERecord?id=CVE-2026-31662 Référence CVE CVE-2026-31664 https://www.cve.org/CVERecord?id=CVE-2026-31664 Référence CVE CVE-2026-31665 https://www.cve.org/CVERecord?id=CVE-2026-31665 Référence CVE CVE-2026-31666 https://www.cve.org/CVERecord?id=CVE-2026-31666 Référence CVE CVE-2026-31667 https://www.cve.org/CVERecord?id=CVE-2026-31667 Référence CVE CVE-2026-31668 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0526Multiples vulnérabilités dans les produits Microsoft

sécurité Microsoft CVE-2026-31638 du 26 avril 2026 Bulletin de sécurité Microsoft CVE-2026-31639 du 26 avril 2026 Bulletin de sécurité Microsoft CVE-2026-31642 du 26 avril 2026 Bulletin de sécurité Microsoft CVE-2026-31646 du 26 avril 2026 Bulletin de sécurité Microsoft CVE-2026-31649 du 26 avril 2026 Bulletin de sécurité Microsoft CVE-2026-31651 du 26 avril 2026 Bulletin de sécurité Microsoft CVE-2026-31655 du 26 avril 2026 Bulletin de sécurité Microsoft CVE-2026-31656 du 26 avril 2026 Bulletin de sécurité Microsoft CVE-2026-31657 du 26 avril 2026 Bulletin de sécurité Microsoft CVE-2026-31658 du 26 avril 2026 Bulletin de sécurité Microsoft CVE-2026-31659 du 26 avril 2026 Bulletin de sécurité Microsoft CVE-2026-31660 du 26 avril 2026 Bulletin de sécurité Microsoft CVE-2026-31662 du 26 avril 2026 Bulletin de sécurité Microsoft CVE-2026-31664 du 26 avril 2026 Bulletin de sécurité Microsoft CVE-2026-31665 du 26 avril 2026 Bulletin de sécurité Microsoft CVE-2026-31667 du 26 avril 2026 Bulletin de sécurité Microsoft CVE-2026-31668 du 26 avril 2026 Bulletin de sécurité Microsoft CVE-2026-31669 du 26 avril 2026 Bulletin de sécurité Microsoft CVE-2026-31670 du 26 avril 2026 Bulletin de sécurité Microsoft CVE-2026-31671 du 26 avril 2026 Bulletin de sécurité Microsoft CVE-2026-31672 du 26 avril 2026 Bu

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-013628Linux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。batman-advでは巨大なグローバルTTレスポンスバッファに関する拒否脆弱性が存在しました。batadv_tt_prepare_tvlv_global_data()関数は、グローバルTTレスポンスの割り当て長を16ビットの一時変数で処理していました。リモートオリジネーターが非常に大きなグローバルTTを広告すると、TTペイロード長とVLANヘッダーオフセットの合計が65535を超え、kmalloc()の前にオーバーフローが発生します。フルテーブルレスポンス経路はtt_changeを埋める際に元のTTペイロード長を使用し続けるため、オーバーフローした割り当てが小さすぎ、batadv_tt_prepare_tvlv_global_data()が後のパケットサイズチェックが実行される前にヒープオブジェクトの末尾を超えて書き込みを行ってしまいます。この問題は、16ビットのTVLVペイロード長フィールドに収まらないTVLV値長を持つTTレスポンスを拒否することで修正されました。

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: < 3.13, 5.10.253 ≤ 5.10.*, 5.15.203 ≤ 5.15.*, 6.1.169 ≤ 6.1.*, 6.6.135 ≤ 6.6.*, 6.12.82 ≤ 6.12.*, 6.18.23 ≤ 6.18.*, 6.19.13 ≤ 6.19.*, 7.0 ≤ *
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 24 Apr 2026 · Last source change 5 Aug 2026, 12:24 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-2026-25552
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

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
CVE published
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2026-25552↗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-2026-31659 · cve.blacktree.nl