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Full vulnerability report · 2026
CVE-2026-43233High confidence

netfilter: nf_conntrack_h323: fix OOB read in decode_choice()

Linux · Linux

8.2HighCVSS 3.1
Recommended action
Patch only the product branches with a verified fix

High technical severity; prioritise exposed affected systems while verifying vendor guidance. Verified remediation exists for at least one product or source, but 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 severityHighOperational priority:High, 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 0.46% 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 30 daysRemediation target: Within 180 days

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

Cross-source reconciliation

Remediation availability differs by product scope

Verified remediation exists for at least one product or source, but 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 5 Oct 2026
Debian bookwormbookworm · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.6.1.170-1Debian Security Tracker ↗Source updated 5 Oct 2026
Debian forkyforky · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.6.19.6-1Debian Security Tracker ↗Source updated 5 Oct 2026
Debian sidsid · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.6.19.6-1Debian 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-2026-43233 · CSAF 2.0 · revision 14 · interimSUSE Product Security TeamCVE-2026-43233
201 known affected

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

  • kernel-default as component of SUSE Linux Enterprise High Performance Computing 15 SP2
  • kernel-default-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP2
  • kernel-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP2
  • kernel-macros as component of SUSE Linux Enterprise High Performance Computing 15 SP2
  • kernel-source as component of SUSE Linux Enterprise High Performance Computing 15 SP2
  • reiserfs-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP2
  • kernel-default as component of SUSE Linux Enterprise High Performance Computing 15 SP3
  • kernel-default-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP3
  • kernel-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP3
  • kernel-macros as component of SUSE Linux Enterprise High Performance Computing 15 SP3
  • kernel-source as component of SUSE Linux Enterprise High Performance Computing 15 SP3
  • reiserfs-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP3
Summary
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conntrack_h323: fix OOB read in decode_choice() In decode_choice(), the boundary check before get_len() uses the variable `len`, which is still 0 from its initialization at the top of the function: unsigned int type, ext, len = 0; ... if (ext || (son->attr & OPEN)) { BYTE_ALIGN(bs); if (nf_h323_error_boundary(bs, len, 0)) /* len is 0 here */ return H323_ERROR_BOUND; len = get_len(bs); /* OOB read */ When the bitstream is exactly consumed (bs->cur == bs->end), the check nf_h323_error_boundary(bs, 0, 0) evaluates to (bs->cur + 0 > bs->end), which is false. The subsequent get_len() call then dereferences *bs->cur++, reading 1 byte past the end of the buffer. If that byte has bit 7 set, get_len() reads a second byte as well. This can be triggered remotely by sending a crafted Q.931 SETUP message with a User-User Information Element containing exactly 2 bytes of PER-encoded data ({0x08, 0x00}) to port 1720 through a firewall with the nf_conntrack_h323 helper active. The decoder fully consumes the PER buffer before reaching this code path, resulting in a 1-2 byte heap-buffer-overflow read confirmed by AddressSanitizer. Fix this by checking for 2 bytes (the maximum that get_len() may read) instead of the uninitialized `len`. This matches the pattern used at every other get_len() call site in the same file, where the caller checks for 2 bytes of available data before calling get_len().
Remediation
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
CVE-2026-43233 · CSAF 2.0 · revision 3 · finalRed Hat Product Securitykernel: netfilter: nf_conntrack_h323: fix OOB read in decode_choice()
112 known affected

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

  • kernel as a component of Red Hat Enterprise Linux 10
  • kernel-64k as a component of Red Hat Enterprise Linux 10
  • kernel-64k-core as a component of Red Hat Enterprise Linux 10
  • kernel-64k-debug as a component of Red Hat Enterprise Linux 10
  • kernel-64k-debug-core as a component of Red Hat Enterprise Linux 10
  • kernel-64k-debug-devel as a component of Red Hat Enterprise Linux 10
  • kernel-64k-debug-devel-matched as a component of Red Hat Enterprise Linux 10
  • kernel-64k-debug-modules as a component of Red Hat Enterprise Linux 10
  • kernel-64k-debug-modules-core as a component of Red Hat Enterprise Linux 10
  • kernel-64k-debug-modules-extra as a component of Red Hat Enterprise Linux 10
  • kernel-64k-devel as a component of Red Hat Enterprise Linux 10
  • kernel-64k-devel-matched as a component of Red Hat Enterprise Linux 10
Summary
A flaw was found in the Linux kernel's `nf_conntrack_h323` helper. A remote attacker could exploit this by sending a specially crafted Q.931 SETUP message to port 1720 through a firewall with the `nf_conntrack_h323` helper active. This memory corruption vulnerability leads to an out-of-bounds read, which can result in a heap-buffer-overflow.
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-2026-27794

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

High technical severity; prioritise exposed affected systems while verifying vendor guidance. 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: netfilter: nf_conntrack_h323: fix OOB read in decode_choice() In decode_choice(), the boundary check before get_len() uses the variable `len`, which is still 0 from its initialization at the top of the function: unsigned int type, ext, len = 0; ... if (ext || (son->attr & OPEN)) { BYTE_ALIGN(bs); if (nf_h323_error_boundary(bs, len, 0)) /* len is 0 here */ return H323_ERROR_BOUND; len = get_len(bs); /* OOB read */ When the bitstream is exactly consumed (bs->cur == bs->end), the check nf_h323_error_boundary(bs, 0, 0) evaluates to (bs->cur + 0 > bs->end), which is false. The subsequent get_len() call then dereferences *bs->cur++, reading 1 byte past the end of the buffer. If that byte has bit 7 set, get_len() reads a second byte as well. This can be triggered remotely by sending a crafted Q.931 SETUP message with a User-User Information Element containing exactly 2 bytes of PER-encoded data ({0x08, 0x00}) to port 1720 through a firewall with the nf_conntrack_h323 helper active. The decoder fully consumes the PER buffer before reaching this code path, resulting in a 1-2 byte heap-buffer-overflow read confirmed by AddressSanitizer. Fix this by checking for 2 bytes (the maximum that get_len() may read) instead of the uninitialized `len`. This matches the pattern used at every other get_len() call site in the same file, where the caller checks for 2 bytes of available data before calling get_len().

What

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conntrack_h323: fix OOB read in decode_choice() In decode_choice(), the boundary check before get_len() uses the variable `len`, which is still 0 from its initialization at the top of the function: unsigned int type, ext, len = 0; ... if (ext || (son->attr & OPEN)) { BYTE_ALIGN(bs); if (nf_h323_error_boundary(bs, len, 0)) /* len is 0 here */ return H323_ERROR_BOUND; len = get_len(bs); /* OOB read */ When the bitstream is exactly consumed (bs->cur == bs->end), the check nf_h323_error_boundary(bs, 0, 0) evaluates to (bs->cur + 0 > bs->end), which is false. The subsequent get_len() call then dereferences *bs->cur++, reading 1 byte past the end of the buffer. If that byte has bit 7 set, get_len() reads a second byte as well. This can be triggered remotely by sending a crafted Q.931 SETUP message with a User-User Information Element containing exactly 2 bytes of PER-encoded data ({0x08, 0x00}) to port 1720 through a firewall with the nf_conntrack_h323 helper active. The decoder fully consumes the PER buffer before reaching this code path, resulting in a 1-2 byte heap-buffer-overflow read confirmed by AddressSanitizer. Fix this by checking for 2 bytes (the maximum that get_len() may read) instead of the uninitialized `len`. This matches the pattern used at every other get_len() call site in the same file, where the caller checks for 2 bytes of available data before calling get_len().

Why

The product reads data past the end, or before the beginning, of the intended buffer.

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: netfilter: nf_conntrack_h323: fix OOB read in decode_choice() In decode_choice(), the boundary check before get_len() uses the variable `len`, which is still 0 from its initialization at the top of the function: unsigned int type, ext, len = 0; ... if (ext || (son->attr & OPEN)) { BYTE_ALIGN(bs); if (nf_h323_error_boundary(bs, len, 0)) /* len is 0 here */ return H323_ERROR_BOUND; len = get_len(bs); /* OOB read */ When the bitstream is exactly consumed (bs->cur == bs->end), the check nf_h323_error_boundary(bs, 0, 0) evaluates to (bs->cur + 0 > bs->end), which is false. The subsequent get_len() call then dereferences *bs->cur++, reading 1 byte past the end of the buffer. If that byte has bit 7 set, get_len() reads a second byte as well. This can be triggered remotely by sending a crafted Q.931 SETUP message with a User-User Information Element containing exactly 2 bytes of PER-encoded data ({0x08, 0x00}) to port 1720 through a firewall with the nf_conntrack_h323 helper active. The decoder fully consumes the PER buffer before reaching this code path, resulting in a 1-2 byte heap-buffer-overflow read confirmed by AddressSanitizer. Fix this by checking for 2 bytes (the maximum that get_len() may read) instead of the uninitialized `len`. This matches the pattern used at every other get_len() call site in the same file, where the caller checks for 2 bytes of available data before calling get_len().

Why

The product reads data past the end, or before the beginning, of the intended buffer.

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 → Out-of-bounds Read → 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: a standard category for the underlying weakness.
CWE-125 ↗

CWE-125: Out-of-bounds Read. The product reads data past the end, or before the beginning, of the intended buffer.

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:L/I:N/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.CLowConfidentiality impact: A successful attack can cause a limited loss.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
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.
NetworkUnauthenticatedCWE-125
A

Official authority intelligence

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

BSI · German · WID-SEC-2026-1405Linux Kernel: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um nicht spezifizierte Angriffe durchzuführen, möglicherweise Sicherheitsmaßnahmen zu umgehen, Daten zu manipulieren oder offenzulegen oder einen Denial-of-Service-Zustand zu verursachen.

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

d?id=CVE-2026-43211 Référence CVE CVE-2026-43218 https://www.cve.org/CVERecord?id=CVE-2026-43218 Référence CVE CVE-2026-43223 https://www.cve.org/CVERecord?id=CVE-2026-43223 Référence CVE CVE-2026-43225 https://www.cve.org/CVERecord?id=CVE-2026-43225 Référence CVE CVE-2026-43226 https://www.cve.org/CVERecord?id=CVE-2026-43226 Référence CVE CVE-2026-43227 https://www.cve.org/CVERecord?id=CVE-2026-43227 Référence CVE CVE-2026-43230 https://www.cve.org/CVERecord?id=CVE-2026-43230 Référence CVE CVE-2026-43231 https://www.cve.org/CVERecord?id=CVE-2026-43231 Référence CVE CVE-2026-43232 https://www.cve.org/CVERecord?id=CVE-2026-43232 Référence CVE CVE-2026-43233 https://www.cve.org/CVERecord?id=CVE-2026-43233 Référence CVE CVE-2026-43236 https://www.cve.org/CVERecord?id=CVE-2026-43236 Référence CVE CVE-2026-43241 https://www.cve.org/CVERecord?id=CVE-2026-43241 Référence CVE CVE-2026-43242 https://www.cve.org/CVERecord?id=CVE-2026-43242 Référence CVE CVE-2026-43246 https://www.cve.org/CVERecord?id=CVE-2026-43246 Référence CVE CVE-2026-43251 https://www.cve.org/CVERecord?id=CVE-2026-43251 Référence CVE CVE-2026-43255 https://www.cve.org/CVERecord?id=CVE-2026-43255 Référence CVE CVE-2026-43257 https://www.cve.org/CVERecord?id=CVE-2026-43257 Référence CVE CVE-2026-43261 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-2026-23172 Référence CVE CVE-2026-23466 https://www.cve.org/CVERecord?id=CVE-2026-23466 Référence CVE CVE-2026-31479 https://www.cve.org/CVERecord?id=CVE-2026-31479 Référence CVE CVE-2026-31539 https://www.cve.org/CVERecord?id=CVE-2026-31539 Référence CVE CVE-2026-31566 https://www.cve.org/CVERecord?id=CVE-2026-31566 Référence CVE CVE-2026-31656 https://www.cve.org/CVERecord?id=CVE-2026-31656 Référence CVE CVE-2026-31663 https://www.cve.org/CVERecord?id=CVE-2026-31663 Référence CVE CVE-2026-43114 https://www.cve.org/CVERecord?id=CVE-2026-43114 Référence CVE CVE-2026-43133 https://www.cve.org/CVERecord?id=CVE-2026-43133 Référence CVE CVE-2026-43233 https://www.cve.org/CVERecord?id=CVE-2026-43233 Référence CVE CVE-2026-43248 https://www.cve.org/CVERecord?id=CVE-2026-43248 Référence CVE CVE-2026-43339 https://www.cve.org/CVERecord?id=CVE-2026-43339 Référence CVE CVE-2026-43368 https://www.cve.org/CVERecord?id=CVE-2026-43368 Référence CVE CVE-2026-43370 https://www.cve.org/CVERecord?id=CVE-2026-43370 Référence CVE CVE-2026-45998 https://www.cve.org/CVERecord?id=CVE-2026-45998 Référence CVE CVE-2026-46054 https://www.cve.org/CVERecord?id=CVE-2026-46054 Référence CVE CVE-2026-46056 https://www.cve.org/CVERecord?id=CVE-2026-46056 Référence CVE CVE-2026-46149 https://www.cve.org/CVERecord?id=

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

d?id=CVE-2026-43211 Référence CVE CVE-2026-43218 https://www.cve.org/CVERecord?id=CVE-2026-43218 Référence CVE CVE-2026-43223 https://www.cve.org/CVERecord?id=CVE-2026-43223 Référence CVE CVE-2026-43225 https://www.cve.org/CVERecord?id=CVE-2026-43225 Référence CVE CVE-2026-43226 https://www.cve.org/CVERecord?id=CVE-2026-43226 Référence CVE CVE-2026-43227 https://www.cve.org/CVERecord?id=CVE-2026-43227 Référence CVE CVE-2026-43230 https://www.cve.org/CVERecord?id=CVE-2026-43230 Référence CVE CVE-2026-43231 https://www.cve.org/CVERecord?id=CVE-2026-43231 Référence CVE CVE-2026-43232 https://www.cve.org/CVERecord?id=CVE-2026-43232 Référence CVE CVE-2026-43233 https://www.cve.org/CVERecord?id=CVE-2026-43233 Référence CVE CVE-2026-43236 https://www.cve.org/CVERecord?id=CVE-2026-43236 Référence CVE CVE-2026-43241 https://www.cve.org/CVERecord?id=CVE-2026-43241 Référence CVE CVE-2026-43242 https://www.cve.org/CVERecord?id=CVE-2026-43242 Référence CVE CVE-2026-43246 https://www.cve.org/CVERecord?id=CVE-2026-43246 Référence CVE CVE-2026-43251 https://www.cve.org/CVERecord?id=CVE-2026-43251 Référence CVE CVE-2026-43255 https://www.cve.org/CVERecord?id=CVE-2026-43255 Référence CVE CVE-2026-43257 https://www.cve.org/CVERecord?id=CVE-2026-43257 Référence CVE CVE-2026-43261 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0985Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-43211 Référence CVE CVE-2026-43218 https://www.cve.org/CVERecord?id=CVE-2026-43218 Référence CVE CVE-2026-43223 https://www.cve.org/CVERecord?id=CVE-2026-43223 Référence CVE CVE-2026-43225 https://www.cve.org/CVERecord?id=CVE-2026-43225 Référence CVE CVE-2026-43226 https://www.cve.org/CVERecord?id=CVE-2026-43226 Référence CVE CVE-2026-43227 https://www.cve.org/CVERecord?id=CVE-2026-43227 Référence CVE CVE-2026-43230 https://www.cve.org/CVERecord?id=CVE-2026-43230 Référence CVE CVE-2026-43231 https://www.cve.org/CVERecord?id=CVE-2026-43231 Référence CVE CVE-2026-43232 https://www.cve.org/CVERecord?id=CVE-2026-43232 Référence CVE CVE-2026-43233 https://www.cve.org/CVERecord?id=CVE-2026-43233 Référence CVE CVE-2026-43236 https://www.cve.org/CVERecord?id=CVE-2026-43236 Référence CVE CVE-2026-43241 https://www.cve.org/CVERecord?id=CVE-2026-43241 Référence CVE CVE-2026-43242 https://www.cve.org/CVERecord?id=CVE-2026-43242 Référence CVE CVE-2026-43246 https://www.cve.org/CVERecord?id=CVE-2026-43246 Référence CVE CVE-2026-43251 https://www.cve.org/CVERecord?id=CVE-2026-43251 Référence CVE CVE-2026-43255 https://www.cve.org/CVERecord?id=CVE-2026-43255 Référence CVE CVE-2026-43257 https://www.cve.org/CVERecord?id=CVE-2026-43257 Référence CVE CVE-2026-43261 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0956Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-43190 Référence CVE CVE-2026-43191 https://www.cve.org/CVERecord?id=CVE-2026-43191 Référence CVE CVE-2026-43194 https://www.cve.org/CVERecord?id=CVE-2026-43194 Référence CVE CVE-2026-43198 https://www.cve.org/CVERecord?id=CVE-2026-43198 Référence CVE CVE-2026-43199 https://www.cve.org/CVERecord?id=CVE-2026-43199 Référence CVE CVE-2026-43204 https://www.cve.org/CVERecord?id=CVE-2026-43204 Référence CVE CVE-2026-43205 https://www.cve.org/CVERecord?id=CVE-2026-43205 Référence CVE CVE-2026-43213 https://www.cve.org/CVERecord?id=CVE-2026-43213 Référence CVE CVE-2026-43226 https://www.cve.org/CVERecord?id=CVE-2026-43226 Référence CVE CVE-2026-43233 https://www.cve.org/CVERecord?id=CVE-2026-43233 Référence CVE CVE-2026-43238 https://www.cve.org/CVERecord?id=CVE-2026-43238 Référence CVE CVE-2026-43240 https://www.cve.org/CVERecord?id=CVE-2026-43240 Référence CVE CVE-2026-43248 https://www.cve.org/CVERecord?id=CVE-2026-43248 Référence CVE CVE-2026-43253 https://www.cve.org/CVERecord?id=CVE-2026-43253 Référence CVE CVE-2026-43260 https://www.cve.org/CVERecord?id=CVE-2026-43260 Référence CVE CVE-2026-43283 https://www.cve.org/CVERecord?id=CVE-2026-43283 Référence CVE CVE-2026-43284 https://www.cve.org/CVERecord?id=CVE-2026-43284 Référence CVE CVE-2026-43294 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-2026-43221 Référence CVE CVE-2026-43222 https://www.cve.org/CVERecord?id=CVE-2026-43222 Référence CVE CVE-2026-43223 https://www.cve.org/CVERecord?id=CVE-2026-43223 Référence CVE CVE-2026-43225 https://www.cve.org/CVERecord?id=CVE-2026-43225 Référence CVE CVE-2026-43226 https://www.cve.org/CVERecord?id=CVE-2026-43226 Référence CVE CVE-2026-43227 https://www.cve.org/CVERecord?id=CVE-2026-43227 Référence CVE CVE-2026-43230 https://www.cve.org/CVERecord?id=CVE-2026-43230 Référence CVE CVE-2026-43231 https://www.cve.org/CVERecord?id=CVE-2026-43231 Référence CVE CVE-2026-43232 https://www.cve.org/CVERecord?id=CVE-2026-43232 Référence CVE CVE-2026-43233 https://www.cve.org/CVERecord?id=CVE-2026-43233 Référence CVE CVE-2026-43236 https://www.cve.org/CVERecord?id=CVE-2026-43236 Référence CVE CVE-2026-43238 https://www.cve.org/CVERecord?id=CVE-2026-43238 Référence CVE CVE-2026-43239 https://www.cve.org/CVERecord?id=CVE-2026-43239 Référence CVE CVE-2026-43241 https://www.cve.org/CVERecord?id=CVE-2026-43241 Référence CVE CVE-2026-43242 https://www.cve.org/CVERecord?id=CVE-2026-43242 Référence CVE CVE-2026-43244 https://www.cve.org/CVERecord?id=CVE-2026-43244 Référence CVE CVE-2026-43245 https://www.cve.org/CVERecord?id=CVE-2026-43245 Référence CVE CVE-2026-43246 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-2026-43218 Référence CVE CVE-2026-43220 https://www.cve.org/CVERecord?id=CVE-2026-43220 Référence CVE CVE-2026-43221 https://www.cve.org/CVERecord?id=CVE-2026-43221 Référence CVE CVE-2026-43222 https://www.cve.org/CVERecord?id=CVE-2026-43222 Référence CVE CVE-2026-43223 https://www.cve.org/CVERecord?id=CVE-2026-43223 Référence CVE CVE-2026-43225 https://www.cve.org/CVERecord?id=CVE-2026-43225 Référence CVE CVE-2026-43226 https://www.cve.org/CVERecord?id=CVE-2026-43226 Référence CVE CVE-2026-43231 https://www.cve.org/CVERecord?id=CVE-2026-43231 Référence CVE CVE-2026-43232 https://www.cve.org/CVERecord?id=CVE-2026-43232 Référence CVE CVE-2026-43233 https://www.cve.org/CVERecord?id=CVE-2026-43233 Référence CVE CVE-2026-43236 https://www.cve.org/CVERecord?id=CVE-2026-43236 Référence CVE CVE-2026-43238 https://www.cve.org/CVERecord?id=CVE-2026-43238 Référence CVE CVE-2026-43240 https://www.cve.org/CVERecord?id=CVE-2026-43240 Référence CVE CVE-2026-43241 https://www.cve.org/CVERecord?id=CVE-2026-43241 Référence CVE CVE-2026-43242 https://www.cve.org/CVERecord?id=CVE-2026-43242 Référence CVE CVE-2026-43243 https://www.cve.org/CVERecord?id=CVE-2026-43243 Référence CVE CVE-2026-43244 https://www.cve.org/CVERecord?id=CVE-2026-43244 Référence CVE CVE-2026-43246 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-2026-43211 Référence CVE CVE-2026-43218 https://www.cve.org/CVERecord?id=CVE-2026-43218 Référence CVE CVE-2026-43223 https://www.cve.org/CVERecord?id=CVE-2026-43223 Référence CVE CVE-2026-43225 https://www.cve.org/CVERecord?id=CVE-2026-43225 Référence CVE CVE-2026-43226 https://www.cve.org/CVERecord?id=CVE-2026-43226 Référence CVE CVE-2026-43227 https://www.cve.org/CVERecord?id=CVE-2026-43227 Référence CVE CVE-2026-43230 https://www.cve.org/CVERecord?id=CVE-2026-43230 Référence CVE CVE-2026-43231 https://www.cve.org/CVERecord?id=CVE-2026-43231 Référence CVE CVE-2026-43232 https://www.cve.org/CVERecord?id=CVE-2026-43232 Référence CVE CVE-2026-43233 https://www.cve.org/CVERecord?id=CVE-2026-43233 Référence CVE CVE-2026-43236 https://www.cve.org/CVERecord?id=CVE-2026-43236 Référence CVE CVE-2026-43241 https://www.cve.org/CVERecord?id=CVE-2026-43241 Référence CVE CVE-2026-43242 https://www.cve.org/CVERecord?id=CVE-2026-43242 Référence CVE CVE-2026-43245 https://www.cve.org/CVERecord?id=CVE-2026-43245 Référence CVE CVE-2026-43246 https://www.cve.org/CVERecord?id=CVE-2026-43246 Référence CVE CVE-2026-43251 https://www.cve.org/CVERecord?id=CVE-2026-43251 Référence CVE CVE-2026-43252 https://www.cve.org/CVERecord?id=CVE-2026-43252 Référence CVE CVE-2026-43255 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0900Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-43080 Référence CVE CVE-2026-43089 https://www.cve.org/CVERecord?id=CVE-2026-43089 Référence CVE CVE-2026-43093 https://www.cve.org/CVERecord?id=CVE-2026-43093 Référence CVE CVE-2026-43112 https://www.cve.org/CVERecord?id=CVE-2026-43112 Référence CVE CVE-2026-43117 https://www.cve.org/CVERecord?id=CVE-2026-43117 Référence CVE CVE-2026-43120 https://www.cve.org/CVERecord?id=CVE-2026-43120 Référence CVE CVE-2026-43139 https://www.cve.org/CVERecord?id=CVE-2026-43139 Référence CVE CVE-2026-43190 https://www.cve.org/CVERecord?id=CVE-2026-43190 Référence CVE CVE-2026-43198 https://www.cve.org/CVERecord?id=CVE-2026-43198 Référence CVE CVE-2026-43233 https://www.cve.org/CVERecord?id=CVE-2026-43233 Référence CVE CVE-2026-43279 https://www.cve.org/CVERecord?id=CVE-2026-43279 Référence CVE CVE-2026-43284 https://www.cve.org/CVERecord?id=CVE-2026-43284 Référence CVE CVE-2026-43336 https://www.cve.org/CVERecord?id=CVE-2026-43336 Référence CVE CVE-2026-43366 https://www.cve.org/CVERecord?id=CVE-2026-43366 Référence CVE CVE-2026-43437 https://www.cve.org/CVERecord?id=CVE-2026-43437 Référence CVE CVE-2026-43456 https://www.cve.org/CVERecord?id=CVE-2026-43456 Référence CVE CVE-2026-43472 https://www.cve.org/CVERecord?id=CVE-2026-43472 Référence CVE CVE-2026-43492 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0864Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-43112 Référence CVE CVE-2026-43119 https://www.cve.org/CVERecord?id=CVE-2026-43119 Référence CVE CVE-2026-43128 https://www.cve.org/CVERecord?id=CVE-2026-43128 Référence CVE CVE-2026-43139 https://www.cve.org/CVERecord?id=CVE-2026-43139 Référence CVE CVE-2026-43158 https://www.cve.org/CVERecord?id=CVE-2026-43158 Référence CVE CVE-2026-43171 https://www.cve.org/CVERecord?id=CVE-2026-43171 Référence CVE CVE-2026-43187 https://www.cve.org/CVERecord?id=CVE-2026-43187 Référence CVE CVE-2026-43198 https://www.cve.org/CVERecord?id=CVE-2026-43198 Référence CVE CVE-2026-43206 https://www.cve.org/CVERecord?id=CVE-2026-43206 Référence CVE CVE-2026-43233 https://www.cve.org/CVERecord?id=CVE-2026-43233 Référence CVE CVE-2026-43234 https://www.cve.org/CVERecord?id=CVE-2026-43234 Référence CVE CVE-2026-43238 https://www.cve.org/CVERecord?id=CVE-2026-43238 Référence CVE CVE-2026-43239 https://www.cve.org/CVERecord?id=CVE-2026-43239 Référence CVE CVE-2026-43249 https://www.cve.org/CVERecord?id=CVE-2026-43249 Référence CVE CVE-2026-43252 https://www.cve.org/CVERecord?id=CVE-2026-43252 Référence CVE CVE-2026-43261 https://www.cve.org/CVERecord?id=CVE-2026-43261 Référence CVE CVE-2026-43284 https://www.cve.org/CVERecord?id=CVE-2026-43284 Référence CVE CVE-2026-43296 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-2026-43221 Référence CVE CVE-2026-43222 https://www.cve.org/CVERecord?id=CVE-2026-43222 Référence CVE CVE-2026-43223 https://www.cve.org/CVERecord?id=CVE-2026-43223 Référence CVE CVE-2026-43225 https://www.cve.org/CVERecord?id=CVE-2026-43225 Référence CVE CVE-2026-43226 https://www.cve.org/CVERecord?id=CVE-2026-43226 Référence CVE CVE-2026-43227 https://www.cve.org/CVERecord?id=CVE-2026-43227 Référence CVE CVE-2026-43230 https://www.cve.org/CVERecord?id=CVE-2026-43230 Référence CVE CVE-2026-43231 https://www.cve.org/CVERecord?id=CVE-2026-43231 Référence CVE CVE-2026-43232 https://www.cve.org/CVERecord?id=CVE-2026-43232 Référence CVE CVE-2026-43233 https://www.cve.org/CVERecord?id=CVE-2026-43233 Référence CVE CVE-2026-43236 https://www.cve.org/CVERecord?id=CVE-2026-43236 Référence CVE CVE-2026-43238 https://www.cve.org/CVERecord?id=CVE-2026-43238 Référence CVE CVE-2026-43239 https://www.cve.org/CVERecord?id=CVE-2026-43239 Référence CVE CVE-2026-43241 https://www.cve.org/CVERecord?id=CVE-2026-43241 Référence CVE CVE-2026-43242 https://www.cve.org/CVERecord?id=CVE-2026-43242 Référence CVE CVE-2026-43244 https://www.cve.org/CVERecord?id=CVE-2026-43244 Référence CVE CVE-2026-43246 https://www.cve.org/CVERecord?id=CVE-2026-43246 Référence CVE CVE-2026-43248 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-2026-43221 Référence CVE CVE-2026-43222 https://www.cve.org/CVERecord?id=CVE-2026-43222 Référence CVE CVE-2026-43223 https://www.cve.org/CVERecord?id=CVE-2026-43223 Référence CVE CVE-2026-43225 https://www.cve.org/CVERecord?id=CVE-2026-43225 Référence CVE CVE-2026-43226 https://www.cve.org/CVERecord?id=CVE-2026-43226 Référence CVE CVE-2026-43227 https://www.cve.org/CVERecord?id=CVE-2026-43227 Référence CVE CVE-2026-43230 https://www.cve.org/CVERecord?id=CVE-2026-43230 Référence CVE CVE-2026-43231 https://www.cve.org/CVERecord?id=CVE-2026-43231 Référence CVE CVE-2026-43232 https://www.cve.org/CVERecord?id=CVE-2026-43232 Référence CVE CVE-2026-43233 https://www.cve.org/CVERecord?id=CVE-2026-43233 Référence CVE CVE-2026-43236 https://www.cve.org/CVERecord?id=CVE-2026-43236 Référence CVE CVE-2026-43238 https://www.cve.org/CVERecord?id=CVE-2026-43238 Référence CVE CVE-2026-43239 https://www.cve.org/CVERecord?id=CVE-2026-43239 Référence CVE CVE-2026-43241 https://www.cve.org/CVERecord?id=CVE-2026-43241 Référence CVE CVE-2026-43242 https://www.cve.org/CVERecord?id=CVE-2026-43242 Référence CVE CVE-2026-43244 https://www.cve.org/CVERecord?id=CVE-2026-43244 Référence CVE CVE-2026-43246 https://www.cve.org/CVERecord?id=CVE-2026-43246 Référence CVE CVE-2026-43248 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-2026-43209 Référence CVE CVE-2026-43211 https://www.cve.org/CVERecord?id=CVE-2026-43211 Référence CVE CVE-2026-43218 https://www.cve.org/CVERecord?id=CVE-2026-43218 Référence CVE CVE-2026-43223 https://www.cve.org/CVERecord?id=CVE-2026-43223 Référence CVE CVE-2026-43226 https://www.cve.org/CVERecord?id=CVE-2026-43226 Référence CVE CVE-2026-43227 https://www.cve.org/CVERecord?id=CVE-2026-43227 Référence CVE CVE-2026-43230 https://www.cve.org/CVERecord?id=CVE-2026-43230 Référence CVE CVE-2026-43231 https://www.cve.org/CVERecord?id=CVE-2026-43231 Référence CVE CVE-2026-43232 https://www.cve.org/CVERecord?id=CVE-2026-43232 Référence CVE CVE-2026-43233 https://www.cve.org/CVERecord?id=CVE-2026-43233 Référence CVE CVE-2026-43236 https://www.cve.org/CVERecord?id=CVE-2026-43236 Référence CVE CVE-2026-43241 https://www.cve.org/CVERecord?id=CVE-2026-43241 Référence CVE CVE-2026-43242 https://www.cve.org/CVERecord?id=CVE-2026-43242 Référence CVE CVE-2026-43246 https://www.cve.org/CVERecord?id=CVE-2026-43246 Référence CVE CVE-2026-43251 https://www.cve.org/CVERecord?id=CVE-2026-43251 Référence CVE CVE-2026-43255 https://www.cve.org/CVERecord?id=CVE-2026-43255 Référence CVE CVE-2026-43257 https://www.cve.org/CVERecord?id=CVE-2026-43257 Référence CVE CVE-2026-43261 https://www.cve.org/CVERecord?id=

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-015349LinuxのLinux Kernelにおける境界外読み取りに関する脆弱性

Linuxカーネルにおいて、以下の脆弱性が修正されました。netfilter: nf_conntrack_h323のdecode_choice()関数内で発生していた範囲外読み取り（OOB読み取り）の問題です。decode_choice()関数では、get_len()の前の境界チェックで、関数冒頭で初期化されたままの変数`len`（値は0）を使用していました。具体的には、unsigned int type, ext, len = 0; ... if (ext || (son-attr & OPEN)) {BYTE_ALIGN(bs); if (nf_h323_error_boundary(bs, len, 0)) /* ここでlenは0 */ return H323_ERROR_BOUND; len = get_len(bs); /* OOB読み取り */}ビットストリームがちょうど消費され（bs-cur == bs-end）た場合、nf_h323_error_boundary(bs, 0, 0)の判定は(bs-cur + 0 bs-end)となり、falseになります。これにより、その後のget_len()呼び出しは*bs-cur++を逆参照し、バッファの終端を1バイト越えて読み取ってしまいます。もし読み取ったバイトのビット7がセットされている場合、get_len()はさらに2バイト目も読み取ります。この問題は、nf_conntrack_h323ヘルパーが有効なファイアウォールを介して、PERエンコードされた2バイト（{0x08, 0x00}）のUser-User Information Elementを含む細工されたQ.931 SETUPメッセージをポート1720に送信することでリモートから引き起こすことができます。デコーダはPERバッファを完全に消費した後にこのコードパスに達するため、1から2バイトのヒープバッファオーバーフロー読み取りが発生し、AddressSanitizerによって検出されました。この問題は、初期化されていない`len`の代わりにget_len()が読み取る可能性のある最大2バイトをチェックすることで修正されました。この修正は、同じファイルの他のget_len()呼び出し箇所で用いられている、呼び出し前に利用可能なデータが2バイト以上あることを確認するパターンと一致しています。

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Fix availability varies by product
Affected
Fixed
Linux: < 4.15, 5.10.252 ≤ 5.10.*, 5.15.202 ≤ 5.15.*, 6.1.165 ≤ 6.1.*, 6.6.128 ≤ 6.6.*, 6.12.75 ≤ 6.12.*, 6.18.16 ≤ 6.18.*, 6.19.6 ≤ 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 6 May 2026 · Last source change 5 Aug 2026, 12:26 UTC · CWE-125 · Out-of-bounds Read

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-2026-27794
Product sourceVendor CSAF · SUSE Product Security Team
Remediation sourceVendor CSAF · SUSE Product Security Team
CWE sourceNIST NVD
NVD statusNVD enriched

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

Material change intelligence

What changed after publication

View recent updates ↗
  1. Affected versionsThe structured affected or fixed version information changed.
    Before
    kernel as a component of Red Hat Enterprise Linux 10; kernel-64k as a component of Red Hat Enterprise Linux 10; kernel-64k-core as a component of Red Hat Enterprise Linux 10; kernel-64k-debug as a component of Red Hat Enterprise Linux 10; kernel-64k-debug-core as a component of Red Hat Enterprise Linux 10; kernel-64k-debug-devel as a component of Red Hat Enterprise Linux 10; kernel-64k-debug-devel-matched as a component of Red Hat Enterprise Linux 10; kernel-64k-debug-modules as a component of Red Hat Enterprise Linux 10; kernel-64k-debug-modules-core as a component of Red Hat Enterprise Linux 10; kernel-64k-debug-modules-extra as a component of Red Hat Enterprise Linux 10; kernel-64k-devel as a component of Red Hat Enterprise Linux 10; kernel-64k-devel-matched as a component of Red Hat Enterprise Linux 10; kernel-64k-modules as a component of Red Hat Enterprise Linux 10; kernel-64k-modules-core as a component of Red Hat Enterprise Linux 10; kernel-64k-modules-extra as a component of Red Hat Enterprise Linux 10; kernel-abi-stablelists as a component of Red Hat Enterprise Linux 10; kernel-core as a component of Red Hat Enterprise Linux 10; kernel-debug as a component of Red Hat Enterprise Linux 10; kernel-debug-core as a component of Red Hat Enterprise Linux 10; kernel-debug-devel as a component of Red Hat Enterprise Linux 10; kernel-debug-devel-matched as a component of Red Hat Enterprise Linux 10; kernel-debug-modules as a component of Red Hat Enterprise Linux 10; kernel-debug-modules-core as a component of Red Hat Enterprise Linux 10; kernel-debug-modules-extra as a component of Red Hat Enterprise Linux 10; kernel-debug-uki-virt as a component of Red Hat Enterprise Linux 10; kernel-devel as a component of Red Hat Enterprise Linux 10; kernel-devel-matched as a component of Red Hat Enterprise Linux 10; kernel-doc as a component of Red Hat Enterprise Linux 10; kernel-modules as a component of Red Hat Enterprise Linux 10; kernel-modules-core as a component of Red Hat Enterprise Linux 10; and 130 more · Fixed: kernel-64k-debug-debuginfo-0:5.14.0-687.41.1.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-64k-debug-devel-0:5.14.0-687.41.1.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-64k-debug-devel-matched-0:5.14.0-687.41.1.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-64k-debuginfo-0:5.14.0-687.41.1.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-64k-devel-0:5.14.0-687.41.1.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-64k-devel-matched-0:5.14.0-687.41.1.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-debug-debuginfo-0:5.14.0-687.41.1.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-debug-debuginfo-0:5.14.0-687.41.1.el9_8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-debug-debuginfo-0:5.14.0-687.41.1.el9_8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-debug-debuginfo-0:5.14.0-687.41.1.el9_8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-debug-devel-0:5.14.0-687.41.1.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-debug-devel-0:5.14.0-687.41.1.el9_8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-debug-devel-0:5.14.0-687.41.1.el9_8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-debug-devel-0:5.14.0-687.41.1.el9_8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-debug-devel-matched-0:5.14.0-687.41.1.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-debug-devel-matched-0:5.14.0-687.41.1.el9_8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-debug-devel-matched-0:5.14.0-687.41.1.el9_8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-debug-devel-matched-0:5.14.0-687.41.1.el9_8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-debuginfo-0:5.14.0-687.41.1.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-debuginfo-0:5.14.0-687.41.1.el9_8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-debuginfo-0:5.14.0-687.41.1.el9_8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-debuginfo-0:5.14.0-687.41.1.el9_8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-debuginfo-common-aarch64-0:5.14.0-687.41.1.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-debuginfo-common-ppc64le-0:5.14.0-687.41.1.el9_8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-debuginfo-common-s390x-0:5.14.0-687.41.1.el9_8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-debuginfo-common-x86_64-0:5.14.0-687.41.1.el9_8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-devel-0:5.14.0-687.41.1.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-devel-0:5.14.0-687.41.1.el9_8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-devel-0:5.14.0-687.41.1.el9_8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-devel-0:5.14.0-687.41.1.el9_8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9); and 273 more
    After
    kernel as a component of Red Hat Enterprise Linux 10; kernel-64k as a component of Red Hat Enterprise Linux 10; kernel-64k-core as a component of Red Hat Enterprise Linux 10; kernel-64k-debug as a component of Red Hat Enterprise Linux 10; kernel-64k-debug-core as a component of Red Hat Enterprise Linux 10; kernel-64k-debug-devel as a component of Red Hat Enterprise Linux 10; kernel-64k-debug-devel-matched as a component of Red Hat Enterprise Linux 10; kernel-64k-debug-modules as a component of Red Hat Enterprise Linux 10; kernel-64k-debug-modules-core as a component of Red Hat Enterprise Linux 10; kernel-64k-debug-modules-extra as a component of Red Hat Enterprise Linux 10; kernel-64k-devel as a component of Red Hat Enterprise Linux 10; kernel-64k-devel-matched as a component of Red Hat Enterprise Linux 10; kernel-64k-modules as a component of Red Hat Enterprise Linux 10; kernel-64k-modules-core as a component of Red Hat Enterprise Linux 10; kernel-64k-modules-extra as a component of Red Hat Enterprise Linux 10; kernel-abi-stablelists as a component of Red Hat Enterprise Linux 10; kernel-core as a component of Red Hat Enterprise Linux 10; kernel-debug as a component of Red Hat Enterprise Linux 10; kernel-debug-core as a component of Red Hat Enterprise Linux 10; kernel-debug-devel as a component of Red Hat Enterprise Linux 10; kernel-debug-devel-matched as a component of Red Hat Enterprise Linux 10; kernel-debug-modules as a component of Red Hat Enterprise Linux 10; kernel-debug-modules-core as a component of Red Hat Enterprise Linux 10; kernel-debug-modules-extra as a component of Red Hat Enterprise Linux 10; kernel-debug-uki-virt as a component of Red Hat Enterprise Linux 10; kernel-devel as a component of Red Hat Enterprise Linux 10; kernel-devel-matched as a component of Red Hat Enterprise Linux 10; kernel-doc as a component of Red Hat Enterprise Linux 10; kernel-modules as a component of Red Hat Enterprise Linux 10; kernel-modules-core as a component of Red Hat Enterprise Linux 10; and 82 more · Fixed: kernel-64k-debug-debuginfo-0:5.14.0-687.41.1.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-64k-debug-devel-0:5.14.0-687.41.1.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-64k-debug-devel-matched-0:5.14.0-687.41.1.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-64k-debuginfo-0:5.14.0-687.41.1.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-64k-devel-0:5.14.0-687.41.1.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-64k-devel-matched-0:5.14.0-687.41.1.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-debug-debuginfo-0:5.14.0-687.41.1.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-debug-debuginfo-0:5.14.0-687.41.1.el9_8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-debug-debuginfo-0:5.14.0-687.41.1.el9_8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-debug-debuginfo-0:5.14.0-687.41.1.el9_8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-debug-devel-0:5.14.0-687.41.1.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-debug-devel-0:5.14.0-687.41.1.el9_8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-debug-devel-0:5.14.0-687.41.1.el9_8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-debug-devel-0:5.14.0-687.41.1.el9_8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-debug-devel-matched-0:5.14.0-687.41.1.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-debug-devel-matched-0:5.14.0-687.41.1.el9_8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-debug-devel-matched-0:5.14.0-687.41.1.el9_8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-debug-devel-matched-0:5.14.0-687.41.1.el9_8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-debuginfo-0:5.14.0-687.41.1.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-debuginfo-0:5.14.0-687.41.1.el9_8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-debuginfo-0:5.14.0-687.41.1.el9_8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-debuginfo-0:5.14.0-687.41.1.el9_8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-debuginfo-common-aarch64-0:5.14.0-687.41.1.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-debuginfo-common-ppc64le-0:5.14.0-687.41.1.el9_8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-debuginfo-common-s390x-0:5.14.0-687.41.1.el9_8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-debuginfo-common-x86_64-0:5.14.0-687.41.1.el9_8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-devel-0:5.14.0-687.41.1.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-devel-0:5.14.0-687.41.1.el9_8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-devel-0:5.14.0-687.41.1.el9_8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9); kernel-devel-0:5.14.0-687.41.1.el9_8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9); and 423 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-2026-27794↗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-2026-43233 · cve.blacktree.nl