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Full vulnerability report · 2026
CVE-2026-23455High confidence

netfilter: nf_conntrack_h323: check for zero length in DecodeQ931()

Linux · Linux

Official source article: Siemens SSA-019113 ↗. Check the applicable product and release in the original source.

9.1CriticalCVSS 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 30 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 1.34% 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 30 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.6.19.10-1Debian Security Tracker ↗Source updated 5 Oct 2026
Debian sidsid · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.6.19.10-1Debian 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.

3 current
SSA-019113 · CSAF 2.0 · revision 2 · interimSiemens ProductCERTSSA-019113: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP V3.1.6
5 known affected

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

  • SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0) >= V3.1.6
  • SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0) >= V3.1.6
  • SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0) >= V3.1.6
  • SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0) >= V3.1.6
  • SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0) >= V3.1.6
Summary
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conntrack_h323: check for zero length in DecodeQ931() In DecodeQ931(), the UserUserIE code path reads a 16-bit length from the packet, then decrements it by 1 to skip the protocol discriminator byte before passing it to DecodeH323_UserInformation(). If the encoded length is 0, the decrement wraps to -1, which is then passed as a large value to the decoder, leading to an out-of-bounds read. Add a check to ensure len is positive after the decrement.
Remediation
Limit access to the interactive shell of the additional GNU/Linux subssytem to trusted personnel only.
CVE-2026-23455 · CSAF 2.0 · revision 3 · finalRed Hat Product Securitykernel: netfilter: nf_conntrack_h323: check for zero length in DecodeQ931()
36 known affected

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

  • kernel as a component of Red Hat Enterprise Linux 6
  • kernel-abi-whitelists as a component of Red Hat Enterprise Linux 6
  • kernel-bootwrapper as a component of Red Hat Enterprise Linux 6
  • kernel-debug as a component of Red Hat Enterprise Linux 6
  • kernel-debug-devel as a component of Red Hat Enterprise Linux 6
  • kernel-devel as a component of Red Hat Enterprise Linux 6
  • kernel-doc as a component of Red Hat Enterprise Linux 6
  • kernel-firmware as a component of Red Hat Enterprise Linux 6
  • kernel-headers as a component of Red Hat Enterprise Linux 6
  • kernel-kdump as a component of Red Hat Enterprise Linux 6
  • kernel-kdump-devel as a component of Red Hat Enterprise Linux 6
  • kernel.src as a component of Red Hat Enterprise Linux 6
Summary
A flaw was found in the Linux kernel's netfilter subsystem, specifically within the `nf_conntrack_h323` module. This vulnerability occurs in the `DecodeQ931()` function when processing a zero-length value from a packet. An integer underflow during a length calculation results in a large, incorrect value being passed to a subsequent function, leading to an out-of-bounds read. This could allow an attacker to cause a denial of service or potentially disclose sensitive information.
Remediation
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect.
SSA-082556 · CSAF 2.0 · revision 7 · interimSiemens ProductCERTSSA-082556: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP V3.1.5
5 known affected

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

  • SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0) >= V3.1.5
  • SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0) >= V3.1.5
  • SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0) >= V3.1.5
  • SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0) >= V3.1.5
  • SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0) >= V3.1.5
Summary
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conntrack_h323: check for zero length in DecodeQ931() In DecodeQ931(), the UserUserIE code path reads a 16-bit length from the packet, then decrements it by 1 to skip the protocol discriminator byte before passing it to DecodeH323_UserInformation(). If the encoded length is 0, the decrement wraps to -1, which is then passed as a large value to the decoder, leading to an out-of-bounds read. Add a check to ensure len is positive after the decrement.
Remediation
Limit access to the interactive shell of the additional GNU/Linux subssytem to trusted personnel only.
Optional official sources

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

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

Official European source

ENISA European Vulnerability Database

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

1 current
ENISA EUVD identifier

EUVD-2026-18711

No EUVD known-exploited evidence

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conntrack_h323: check for zero length in DecodeQ931() In DecodeQ931(), the UserUserIE code path reads a 16-bit length from the packet, then decrements it by 1 to skip the protocol discriminator byte before passing it to DecodeH323_UserInformation(). If the encoded length is 0, the decrement wraps to -1, which is then passed as a large value to the decoder, leading to an out-of-bounds read. Add a check to ensure len is positive after the decrement.

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
9.1 · CVSS 3.1
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 30 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: check for zero length in DecodeQ931() In DecodeQ931(), the UserUserIE code path reads a 16-bit length from the packet, then decrements it by 1 to skip the protocol discriminator byte before passing it to DecodeH323_UserInformation(). If the encoded length is 0, the decrement wraps to -1, which is then passed as a large value to the decoder, leading to an out-of-bounds read. Add a check to ensure len is positive after the decrement.

What

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conntrack_h323: check for zero length in DecodeQ931() In DecodeQ931(), the UserUserIE code path reads a 16-bit length from the packet, then decrements it by 1 to skip the protocol discriminator byte before passing it to DecodeH323_UserInformation(). If the encoded length is 0, the decrement wraps to -1, which is then passed as a large value to the decoder, leading to an out-of-bounds read. Add a check to ensure len is positive after the decrement.

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: check for zero length in DecodeQ931() In DecodeQ931(), the UserUserIE code path reads a 16-bit length from the packet, then decrements it by 1 to skip the protocol discriminator byte before passing it to DecodeH323_UserInformation(). If the encoded length is 0, the decrement wraps to -1, which is then passed as a large value to the decoder, leading to an out-of-bounds read. Add a check to ensure len is positive after the decrement.

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:H/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.CHighConfidentiality impact: A successful attack can cause a major 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.

ENISA EUVD · EUVD-2026-18711Official EUVD mapping

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conntrack_h323: check for zero length in DecodeQ931() In DecodeQ931(), the UserUserIE code path reads a 16-bit length from the packet, then decrements it by 1 to skip the protocol discriminator byte before passing it to DecodeH323_UserInformation(). If the encoded length is 0, the decrement wraps to -1, which is then passed as a large value to the decoder, leading to an out-of-bounds read. Add a check to ensure len is positive after the decrement.

Official EUVD record ↗
BSI · German · WID-SEC-2026-3623IBM DataPower Gateway: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in IBM DataPower Gateway ausnutzen, um beliebigen Programmcode auszuführen, erweiterte Berechtigungen zu erlangen, Sicherheitsmaßnahmen zu umgehen, Daten zu manipulieren oder offenzulegen, einen Denial-of-Service-Zustand auszulösen oder Cross-Site-Scripting-Angriffe durchzuführen.

Official advisory ↗
BSI · German · WID-SEC-2026-0985Linux Kernel: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Linux Kernel ausnutzen, um unter anderem einen Denial of Service-Angriff auszuführen oder um Sicherheitsmechanismen zu umgehen.

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

d?id=CVE-2026-23428 Référence CVE CVE-2026-23434 https://www.cve.org/CVERecord?id=CVE-2026-23434 Référence CVE CVE-2026-23438 https://www.cve.org/CVERecord?id=CVE-2026-23438 Référence CVE CVE-2026-23439 https://www.cve.org/CVERecord?id=CVE-2026-23439 Référence CVE CVE-2026-23442 https://www.cve.org/CVERecord?id=CVE-2026-23442 Référence CVE CVE-2026-23444 https://www.cve.org/CVERecord?id=CVE-2026-23444 Référence CVE CVE-2026-23446 https://www.cve.org/CVERecord?id=CVE-2026-23446 Référence CVE CVE-2026-23452 https://www.cve.org/CVERecord?id=CVE-2026-23452 Référence CVE CVE-2026-23454 https://www.cve.org/CVERecord?id=CVE-2026-23454 Référence CVE CVE-2026-23455 https://www.cve.org/CVERecord?id=CVE-2026-23455 Référence CVE CVE-2026-23456 https://www.cve.org/CVERecord?id=CVE-2026-23456 Référence CVE CVE-2026-23457 https://www.cve.org/CVERecord?id=CVE-2026-23457 Référence CVE CVE-2026-23458 https://www.cve.org/CVERecord?id=CVE-2026-23458 Référence CVE CVE-2026-23460 https://www.cve.org/CVERecord?id=CVE-2026-23460 Référence CVE CVE-2026-23462 https://www.cve.org/CVERecord?id=CVE-2026-23462 Référence CVE CVE-2026-23463 https://www.cve.org/CVERecord?id=CVE-2026-23463 Référence CVE CVE-2026-23474 https://www.cve.org/CVERecord?id=CVE-2026-23474 Référence CVE CVE-2026-31393 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-2021-47117 Référence CVE CVE-2021-47202 https://www.cve.org/CVERecord?id=CVE-2021-47202 Référence CVE CVE-2021-47354 https://www.cve.org/CVERecord?id=CVE-2021-47354 Référence CVE CVE-2021-47378 https://www.cve.org/CVERecord?id=CVE-2021-47378 Référence CVE CVE-2023-52646 https://www.cve.org/CVERecord?id=CVE-2023-52646 Référence CVE CVE-2024-38612 https://www.cve.org/CVERecord?id=CVE-2024-38612 Référence CVE CVE-2024-56643 https://www.cve.org/CVERecord?id=CVE-2024-56643 Référence CVE CVE-2025-27558 https://www.cve.org/CVERecord?id=CVE-2025-27558 Référence CVE CVE-2026-23272 https://www.cve.org/CVERecord?id=CVE-2026-23272 Référence CVE CVE-2026-23455 https://www.cve.org/CVERecord?id=CVE-2026-23455 Référence CVE CVE-2026-31402 https://www.cve.org/CVERecord?id=CVE-2026-31402 Référence CVE CVE-2026-31405 https://www.cve.org/CVERecord?id=CVE-2026-31405 Référence CVE CVE-2026-31414 https://www.cve.org/CVERecord?id=CVE-2026-31414 Référence CVE CVE-2026-31448 https://www.cve.org/CVERecord?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=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0986Multiples vulnérabilités dans les produits IBM

ord?id=CVE-2026-22007 Référence CVE CVE-2026-22013 https://www.cve.org/CVERecord?id=CVE-2026-22013 Référence CVE CVE-2026-22021 https://www.cve.org/CVERecord?id=CVE-2026-22021 Référence CVE CVE-2026-2291 https://www.cve.org/CVERecord?id=CVE-2026-2291 Référence CVE CVE-2026-22984 https://www.cve.org/CVERecord?id=CVE-2026-22984 Référence CVE CVE-2026-22990 https://www.cve.org/CVERecord?id=CVE-2026-22990 Référence CVE CVE-2026-23243 https://www.cve.org/CVERecord?id=CVE-2026-23243 Référence CVE CVE-2026-23270 https://www.cve.org/CVERecord?id=CVE-2026-23270 Référence CVE CVE-2026-23392 https://www.cve.org/CVERecord?id=CVE-2026-23392 Référence CVE CVE-2026-23455 https://www.cve.org/CVERecord?id=CVE-2026-23455 Référence CVE CVE-2026-2482 https://www.cve.org/CVERecord?id=CVE-2026-2482 Référence CVE CVE-2026-28390 https://www.cve.org/CVERecord?id=CVE-2026-28390 Référence CVE CVE-2026-29518 https://www.cve.org/CVERecord?id=CVE-2026-29518 Référence CVE CVE-2026-3012 https://www.cve.org/CVERecord?id=CVE-2026-3012 Référence CVE CVE-2026-3039 https://www.cve.org/CVERecord?id=CVE-2026-3039 Référence CVE CVE-2026-31408 https://www.cve.org/CVERecord?id=CVE-2026-31408 Référence CVE CVE-2026-31532 https://www.cve.org/CVERecord?id=CVE-2026-31532 Référence CVE CVE-2026-31581 https://www.cve.org/CVERecord?id=CVE-20

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

d?id=CVE-2026-23442 Référence CVE CVE-2026-23444 https://www.cve.org/CVERecord?id=CVE-2026-23444 Référence CVE CVE-2026-23446 https://www.cve.org/CVERecord?id=CVE-2026-23446 Référence CVE CVE-2026-23447 https://www.cve.org/CVERecord?id=CVE-2026-23447 Référence CVE CVE-2026-23448 https://www.cve.org/CVERecord?id=CVE-2026-23448 Référence CVE CVE-2026-23449 https://www.cve.org/CVERecord?id=CVE-2026-23449 Référence CVE CVE-2026-23450 https://www.cve.org/CVERecord?id=CVE-2026-23450 Référence CVE CVE-2026-23452 https://www.cve.org/CVERecord?id=CVE-2026-23452 Référence CVE CVE-2026-23454 https://www.cve.org/CVERecord?id=CVE-2026-23454 Référence CVE CVE-2026-23455 https://www.cve.org/CVERecord?id=CVE-2026-23455 Référence CVE CVE-2026-23456 https://www.cve.org/CVERecord?id=CVE-2026-23456 Référence CVE CVE-2026-23457 https://www.cve.org/CVERecord?id=CVE-2026-23457 Référence CVE CVE-2026-23458 https://www.cve.org/CVERecord?id=CVE-2026-23458 Référence CVE CVE-2026-23460 https://www.cve.org/CVERecord?id=CVE-2026-23460 Référence CVE CVE-2026-23461 https://www.cve.org/CVERecord?id=CVE-2026-23461 Référence CVE CVE-2026-23462 https://www.cve.org/CVERecord?id=CVE-2026-23462 Référence CVE CVE-2026-23463 https://www.cve.org/CVERecord?id=CVE-2026-23463 Référence CVE CVE-2026-23464 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0928Multiples vulnérabilités dans le noyau Linux de Red Hat

ata/RHSA-2026:44694 Référence CVE CVE-2024-46738 https://www.cve.org/CVERecord?id=CVE-2024-46738 Référence CVE CVE-2024-50076 https://www.cve.org/CVERecord?id=CVE-2024-50076 Référence CVE CVE-2025-39982 https://www.cve.org/CVERecord?id=CVE-2025-39982 Référence CVE CVE-2025-71113 https://www.cve.org/CVERecord?id=CVE-2025-71113 Référence CVE CVE-2025-71147 https://www.cve.org/CVERecord?id=CVE-2025-71147 Référence CVE CVE-2026-23110 https://www.cve.org/CVERecord?id=CVE-2026-23110 Référence CVE CVE-2026-23168 https://www.cve.org/CVERecord?id=CVE-2026-23168 Référence CVE CVE-2026-23243 https://www.cve.org/CVERecord?id=CVE-2026-23243 Référence CVE CVE-2026-23455 https://www.cve.org/CVERecord?id=CVE-2026-23455 Référence CVE CVE-2026-31488 https://www.cve.org/CVERecord?id=CVE-2026-31488 Référence CVE CVE-2026-31530 https://www.cve.org/CVERecord?id=CVE-2026-31530 Référence CVE CVE-2026-31532 https://www.cve.org/CVERecord?id=CVE-2026-31532 Référence CVE CVE-2026-31607 https://www.cve.org/CVERecord?id=CVE-2026-31607 Référence CVE CVE-2026-31613 https://www.cve.org/CVERecord?id=CVE-2026-31613 Référence CVE CVE-2026-31684 https://www.cve.org/CVERecord?id=CVE-2026-31684 Référence CVE CVE-2026-31685 https://www.cve.org/CVERecord?id=CVE-2026-31685 Référence CVE CVE-2026-43037 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-2026-23442 Référence CVE CVE-2026-23444 https://www.cve.org/CVERecord?id=CVE-2026-23444 Référence CVE CVE-2026-23446 https://www.cve.org/CVERecord?id=CVE-2026-23446 Référence CVE CVE-2026-23447 https://www.cve.org/CVERecord?id=CVE-2026-23447 Référence CVE CVE-2026-23448 https://www.cve.org/CVERecord?id=CVE-2026-23448 Référence CVE CVE-2026-23449 https://www.cve.org/CVERecord?id=CVE-2026-23449 Référence CVE CVE-2026-23450 https://www.cve.org/CVERecord?id=CVE-2026-23450 Référence CVE CVE-2026-23452 https://www.cve.org/CVERecord?id=CVE-2026-23452 Référence CVE CVE-2026-23454 https://www.cve.org/CVERecord?id=CVE-2026-23454 Référence CVE CVE-2026-23455 https://www.cve.org/CVERecord?id=CVE-2026-23455 Référence CVE CVE-2026-23456 https://www.cve.org/CVERecord?id=CVE-2026-23456 Référence CVE CVE-2026-23457 https://www.cve.org/CVERecord?id=CVE-2026-23457 Référence CVE CVE-2026-23458 https://www.cve.org/CVERecord?id=CVE-2026-23458 Référence CVE CVE-2026-23460 https://www.cve.org/CVERecord?id=CVE-2026-23460 Référence CVE CVE-2026-23461 https://www.cve.org/CVERecord?id=CVE-2026-23461 Référence CVE CVE-2026-23462 https://www.cve.org/CVERecord?id=CVE-2026-23462 Référence CVE CVE-2026-23463 https://www.cve.org/CVERecord?id=CVE-2026-23463 Référence CVE CVE-2026-23464 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-2026-23257 Référence CVE CVE-2026-23258 https://www.cve.org/CVERecord?id=CVE-2026-23258 Référence CVE CVE-2026-23262 https://www.cve.org/CVERecord?id=CVE-2026-23262 Référence CVE CVE-2026-23272 https://www.cve.org/CVERecord?id=CVE-2026-23272 Référence CVE CVE-2026-23278 https://www.cve.org/CVERecord?id=CVE-2026-23278 Référence CVE CVE-2026-23392 https://www.cve.org/CVERecord?id=CVE-2026-23392 Référence CVE CVE-2026-23427 https://www.cve.org/CVERecord?id=CVE-2026-23427 Référence CVE CVE-2026-23428 https://www.cve.org/CVERecord?id=CVE-2026-23428 Référence CVE CVE-2026-23450 https://www.cve.org/CVERecord?id=CVE-2026-23450 Référence CVE CVE-2026-23455 https://www.cve.org/CVERecord?id=CVE-2026-23455 Référence CVE CVE-2026-31402 https://www.cve.org/CVERecord?id=CVE-2026-31402 Référence CVE CVE-2026-31418 https://www.cve.org/CVERecord?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=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0880Multiples vulnérabilités dans les produits Siemens

26-23242, CVE-2026-23243, CVE-2026-23245, CVE-2026-23270, CVE-2026-23271, CVE-2026-23273, CVE-2026-23274, CVE-2026-23277, CVE-2026-23284, CVE-2026-23287, CVE-2026-23290, CVE-2026-23293, CVE-2026-23300, CVE-2026-23304, CVE-2026-23319, CVE-2026-23321, CVE-2026-23335, CVE-2026-23340, CVE-2026-23343, CVE-2026-23351, CVE-2026-23359, CVE-2026-23365, CVE-2026-23368, CVE-2026-23370, CVE-2026-23378, CVE-2026-23379, CVE-2026-23381, CVE-2026-23391, CVE-2026-23392, CVE-2026-23397, CVE-2026-23398, CVE-2026-23414, CVE-2026-23422, CVE-2026-23434, CVE-2026-23438, CVE-2026-23439, CVE-2026-23446, CVE-2026-23449, CVE-2026-23450, CVE-2026-23452, CVE-2026-23454, CVE-2026-23455, CVE-2026-23456, CVE-2026-23457, CVE-2026-23458, CVE-2026-23463, CVE-2026-23474, CVE-2026-23475, CVE-2026-27135, CVE-2026-31389, CVE-2026-31391, CVE-2026-31396, CVE-2026-31402, CVE-2026-31403, CVE-2026-31411, CVE-2026-31414, CVE-2026-31415, CVE-2026-31416, CVE-2026-31417, CVE-2026-31418, CVE-2026-31421, CVE-2026-31422, CVE-2026-31423, CVE-2026-31424, CVE-2026-31427, CVE-2026-31428, CVE-2026-31431, CVE-2026-31441, CVE-2026-31446, CVE-2026-31447, CVE-2026-31448, CVE-2026-31450, CVE-2026-31452, CVE-2026-31466, CVE-2026-31469, CVE-2026-31485, CVE-2026-31494, CVE-2026-31495, CVE-2026-31496, CVE-2026-31503, CVE-2026-31504, CVE-2026-31507, CVE-2026

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0863Multiples vulnérabilités dans le noyau Linux de Red Hat

d?id=CVE-2025-21691 Référence CVE CVE-2025-68183 https://www.cve.org/CVERecord?id=CVE-2025-68183 Référence CVE CVE-2025-71066 https://www.cve.org/CVERecord?id=CVE-2025-71066 Référence CVE CVE-2025-71116 https://www.cve.org/CVERecord?id=CVE-2025-71116 Référence CVE CVE-2026-22984 https://www.cve.org/CVERecord?id=CVE-2026-22984 Référence CVE CVE-2026-22990 https://www.cve.org/CVERecord?id=CVE-2026-22990 Référence CVE CVE-2026-23191 https://www.cve.org/CVERecord?id=CVE-2026-23191 Référence CVE CVE-2026-23216 https://www.cve.org/CVERecord?id=CVE-2026-23216 Référence CVE CVE-2026-23270 https://www.cve.org/CVERecord?id=CVE-2026-23270 Référence CVE CVE-2026-23455 https://www.cve.org/CVERecord?id=CVE-2026-23455 Référence CVE CVE-2026-31408 https://www.cve.org/CVERecord?id=CVE-2026-31408 Référence CVE CVE-2026-31669 https://www.cve.org/CVERecord?id=CVE-2026-31669 Référence CVE CVE-2026-35385 https://www.cve.org/CVERecord?id=CVE-2026-35385 Référence CVE CVE-2026-35535 https://www.cve.org/CVERecord?id=CVE-2026-35535 Référence CVE CVE-2026-39979 https://www.cve.org/CVERecord?id=CVE-2026-39979 Référence CVE CVE-2026-40164 https://www.cve.org/CVERecord?id=CVE-2026-40164 Référence CVE CVE-2026-41035 https://www.cve.org/CVERecord?id=CVE-2026-41035 Référence CVE CVE-2026-43027 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-2026-23273 Référence CVE CVE-2026-23274 https://www.cve.org/CVERecord?id=CVE-2026-23274 Référence CVE CVE-2026-23278 https://www.cve.org/CVERecord?id=CVE-2026-23278 Référence CVE CVE-2026-23351 https://www.cve.org/CVERecord?id=CVE-2026-23351 Référence CVE CVE-2026-23392 https://www.cve.org/CVERecord?id=CVE-2026-23392 Référence CVE CVE-2026-23394 https://www.cve.org/CVERecord?id=CVE-2026-23394 Référence CVE CVE-2026-23427 https://www.cve.org/CVERecord?id=CVE-2026-23427 Référence CVE CVE-2026-23428 https://www.cve.org/CVERecord?id=CVE-2026-23428 Référence CVE CVE-2026-23450 https://www.cve.org/CVERecord?id=CVE-2026-23450 Référence CVE CVE-2026-23455 https://www.cve.org/CVERecord?id=CVE-2026-23455 Référence CVE CVE-2026-31402 https://www.cve.org/CVERecord?id=CVE-2026-31402 Référence CVE CVE-2026-31411 https://www.cve.org/CVERecord?id=CVE-2026-31411 Référence CVE CVE-2026-31418 https://www.cve.org/CVERecord?id=CVE-2026-31418 Référence CVE CVE-2026-31419 https://www.cve.org/CVERecord?id=CVE-2026-31419 Référence CVE CVE-2026-31431 https://www.cve.org/CVERecord?id=CVE-2026-31431 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=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0832Multiples vulnérabilités dans le noyau Linux de Red Hat

m/errata/RHSA-2026:34095 Bulletin de sécurité Red Hat RHSA-2026:34911 du 02 juillet 2026 https://access.redhat.com/errata/RHSA-2026:34911 Bulletin de sécurité Red Hat RHSA-2026:34927 du 02 juillet 2026 https://access.redhat.com/errata/RHSA-2026:34927 Référence CVE CVE-2025-10263 https://www.cve.org/CVERecord?id=CVE-2025-10263 Référence CVE CVE-2025-71116 https://www.cve.org/CVERecord?id=CVE-2025-71116 Référence CVE CVE-2026-22984 https://www.cve.org/CVERecord?id=CVE-2026-22984 Référence CVE CVE-2026-22990 https://www.cve.org/CVERecord?id=CVE-2026-22990 Référence CVE CVE-2026-23216 https://www.cve.org/CVERecord?id=CVE-2026-23216 Référence CVE CVE-2026-23455 https://www.cve.org/CVERecord?id=CVE-2026-23455 Référence CVE CVE-2026-31411 https://www.cve.org/CVERecord?id=CVE-2026-31411 Référence CVE CVE-2026-31431 https://www.cve.org/CVERecord?id=CVE-2026-31431 Référence CVE CVE-2026-31669 https://www.cve.org/CVERecord?id=CVE-2026-31669 Référence CVE CVE-2026-35385 https://www.cve.org/CVERecord?id=CVE-2026-35385 Référence CVE CVE-2026-35535 https://www.cve.org/CVERecord?id=CVE-2026-35535 Référence CVE CVE-2026-39979 https://www.cve.org/CVERecord?id=CVE-2026-39979 Référence CVE CVE-2026-40164 https://www.cve.org/CVERecord?id=CVE-2026-40164 Référence CVE CVE-2026-41035 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-2026-23272 Référence CVE CVE-2026-23274 https://www.cve.org/CVERecord?id=CVE-2026-23274 Référence CVE CVE-2026-23278 https://www.cve.org/CVERecord?id=CVE-2026-23278 Référence CVE CVE-2026-23351 https://www.cve.org/CVERecord?id=CVE-2026-23351 Référence CVE CVE-2026-23392 https://www.cve.org/CVERecord?id=CVE-2026-23392 Référence CVE CVE-2026-23394 https://www.cve.org/CVERecord?id=CVE-2026-23394 Référence CVE CVE-2026-23427 https://www.cve.org/CVERecord?id=CVE-2026-23427 Référence CVE CVE-2026-23428 https://www.cve.org/CVERecord?id=CVE-2026-23428 Référence CVE CVE-2026-23450 https://www.cve.org/CVERecord?id=CVE-2026-23450 Référence CVE CVE-2026-23455 https://www.cve.org/CVERecord?id=CVE-2026-23455 Référence CVE CVE-2026-31402 https://www.cve.org/CVERecord?id=CVE-2026-31402 Référence CVE CVE-2026-31411 https://www.cve.org/CVERecord?id=CVE-2026-31411 Référence CVE CVE-2026-31418 https://www.cve.org/CVERecord?id=CVE-2026-31418 Référence CVE CVE-2026-31419 https://www.cve.org/CVERecord?id=CVE-2026-31419 Référence CVE CVE-2026-31431 https://www.cve.org/CVERecord?id=CVE-2026-31431 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=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0781Multiples vulnérabilités dans le noyau Linux de Red Hat

d?id=CVE-2025-71116 Référence CVE CVE-2026-22984 https://www.cve.org/CVERecord?id=CVE-2026-22984 Référence CVE CVE-2026-22990 https://www.cve.org/CVERecord?id=CVE-2026-22990 Référence CVE CVE-2026-23001 https://www.cve.org/CVERecord?id=CVE-2026-23001 Référence CVE CVE-2026-23097 https://www.cve.org/CVERecord?id=CVE-2026-23097 Référence CVE CVE-2026-23191 https://www.cve.org/CVERecord?id=CVE-2026-23191 Référence CVE CVE-2026-23216 https://www.cve.org/CVERecord?id=CVE-2026-23216 Référence CVE CVE-2026-23243 https://www.cve.org/CVERecord?id=CVE-2026-23243 Référence CVE CVE-2026-23392 https://www.cve.org/CVERecord?id=CVE-2026-23392 Référence CVE CVE-2026-23455 https://www.cve.org/CVERecord?id=CVE-2026-23455 Référence CVE CVE-2026-31532 https://www.cve.org/CVERecord?id=CVE-2026-31532 Référence CVE CVE-2026-31669 https://www.cve.org/CVERecord?id=CVE-2026-31669 Référence CVE CVE-2026-31685 https://www.cve.org/CVERecord?id=CVE-2026-31685 Référence CVE CVE-2026-31786 https://www.cve.org/CVERecord?id=CVE-2026-31786 Référence CVE CVE-2026-31787 https://www.cve.org/CVERecord?id=CVE-2026-31787 Référence CVE CVE-2026-35385 https://www.cve.org/CVERecord?id=CVE-2026-35385 Référence CVE CVE-2026-39979 https://www.cve.org/CVERecord?id=CVE-2026-39979 Référence CVE CVE-2026-40164 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0747Multiples vulnérabilités dans le noyau Linux de Red Hat

d?id=CVE-2025-40170 Référence CVE CVE-2025-68366 https://www.cve.org/CVERecord?id=CVE-2025-68366 Référence CVE CVE-2025-68724 https://www.cve.org/CVERecord?id=CVE-2025-68724 Référence CVE CVE-2025-71089 https://www.cve.org/CVERecord?id=CVE-2025-71089 Référence CVE CVE-2025-71116 https://www.cve.org/CVERecord?id=CVE-2025-71116 Référence CVE CVE-2026-22984 https://www.cve.org/CVERecord?id=CVE-2026-22984 Référence CVE CVE-2026-22990 https://www.cve.org/CVERecord?id=CVE-2026-22990 Référence CVE CVE-2026-23216 https://www.cve.org/CVERecord?id=CVE-2026-23216 Référence CVE CVE-2026-23392 https://www.cve.org/CVERecord?id=CVE-2026-23392 Référence CVE CVE-2026-23455 https://www.cve.org/CVERecord?id=CVE-2026-23455 Référence CVE CVE-2026-31419 https://www.cve.org/CVERecord?id=CVE-2026-31419 Référence CVE CVE-2026-31467 https://www.cve.org/CVERecord?id=CVE-2026-31467 Référence CVE CVE-2026-31508 https://www.cve.org/CVERecord?id=CVE-2026-31508 Référence CVE CVE-2026-31532 https://www.cve.org/CVERecord?id=CVE-2026-31532 Référence CVE CVE-2026-31581 https://www.cve.org/CVERecord?id=CVE-2026-31581 Référence CVE CVE-2026-31607 https://www.cve.org/CVERecord?id=CVE-2026-31607 Référence CVE CVE-2026-31613 https://www.cve.org/CVERecord?id=CVE-2026-31613 Référence CVE CVE-2026-31685 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0697Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-23443 Référence CVE CVE-2026-23445 https://www.cve.org/CVERecord?id=CVE-2026-23445 Référence CVE CVE-2026-23446 https://www.cve.org/CVERecord?id=CVE-2026-23446 Référence CVE CVE-2026-23447 https://www.cve.org/CVERecord?id=CVE-2026-23447 Référence CVE CVE-2026-23448 https://www.cve.org/CVERecord?id=CVE-2026-23448 Référence CVE CVE-2026-23449 https://www.cve.org/CVERecord?id=CVE-2026-23449 Référence CVE CVE-2026-23450 https://www.cve.org/CVERecord?id=CVE-2026-23450 Référence CVE CVE-2026-23452 https://www.cve.org/CVERecord?id=CVE-2026-23452 Référence CVE CVE-2026-23454 https://www.cve.org/CVERecord?id=CVE-2026-23454 Référence CVE CVE-2026-23455 https://www.cve.org/CVERecord?id=CVE-2026-23455 Référence CVE CVE-2026-23456 https://www.cve.org/CVERecord?id=CVE-2026-23456 Référence CVE CVE-2026-23457 https://www.cve.org/CVERecord?id=CVE-2026-23457 Référence CVE CVE-2026-23458 https://www.cve.org/CVERecord?id=CVE-2026-23458 Référence CVE CVE-2026-23460 https://www.cve.org/CVERecord?id=CVE-2026-23460 Référence CVE CVE-2026-23461 https://www.cve.org/CVERecord?id=CVE-2026-23461 Référence CVE CVE-2026-23462 https://www.cve.org/CVERecord?id=CVE-2026-23462 Référence CVE CVE-2026-23463 https://www.cve.org/CVERecord?id=CVE-2026-23463 Référence CVE CVE-2026-23464 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-2026-23395 Référence CVE CVE-2026-23396 https://www.cve.org/CVERecord?id=CVE-2026-23396 Référence CVE CVE-2026-23397 https://www.cve.org/CVERecord?id=CVE-2026-23397 Référence CVE CVE-2026-23398 https://www.cve.org/CVERecord?id=CVE-2026-23398 Référence CVE CVE-2026-23420 https://www.cve.org/CVERecord?id=CVE-2026-23420 Référence CVE CVE-2026-23434 https://www.cve.org/CVERecord?id=CVE-2026-23434 Référence CVE CVE-2026-23439 https://www.cve.org/CVERecord?id=CVE-2026-23439 Référence CVE CVE-2026-23446 https://www.cve.org/CVERecord?id=CVE-2026-23446 Référence CVE CVE-2026-23452 https://www.cve.org/CVERecord?id=CVE-2026-23452 Référence CVE CVE-2026-23455 https://www.cve.org/CVERecord?id=CVE-2026-23455 Référence CVE CVE-2026-23456 https://www.cve.org/CVERecord?id=CVE-2026-23456 Référence CVE CVE-2026-23457 https://www.cve.org/CVERecord?id=CVE-2026-23457 Référence CVE CVE-2026-23458 https://www.cve.org/CVERecord?id=CVE-2026-23458 Référence CVE CVE-2026-23460 https://www.cve.org/CVERecord?id=CVE-2026-23460 Référence CVE CVE-2026-23462 https://www.cve.org/CVERecord?id=CVE-2026-23462 Référence CVE CVE-2026-23463 https://www.cve.org/CVERecord?id=CVE-2026-23463 Référence CVE CVE-2026-23474 https://www.cve.org/CVERecord?id=CVE-2026-23474 Référence CVE CVE-2026-31391 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0664Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-23340 Référence CVE CVE-2026-23378 https://www.cve.org/CVERecord?id=CVE-2026-23378 Référence CVE CVE-2026-23391 https://www.cve.org/CVERecord?id=CVE-2026-23391 Référence CVE CVE-2026-23403 https://www.cve.org/CVERecord?id=CVE-2026-23403 Référence CVE CVE-2026-23404 https://www.cve.org/CVERecord?id=CVE-2026-23404 Référence CVE CVE-2026-23405 https://www.cve.org/CVERecord?id=CVE-2026-23405 Référence CVE CVE-2026-23408 https://www.cve.org/CVERecord?id=CVE-2026-23408 Référence CVE CVE-2026-23442 https://www.cve.org/CVERecord?id=CVE-2026-23442 Référence CVE CVE-2026-23449 https://www.cve.org/CVERecord?id=CVE-2026-23449 Référence CVE CVE-2026-23455 https://www.cve.org/CVERecord?id=CVE-2026-23455 Référence CVE CVE-2026-23456 https://www.cve.org/CVERecord?id=CVE-2026-23456 Référence CVE CVE-2026-23457 https://www.cve.org/CVERecord?id=CVE-2026-23457 Référence CVE CVE-2026-23458 https://www.cve.org/CVERecord?id=CVE-2026-23458 Référence CVE CVE-2026-23461 https://www.cve.org/CVERecord?id=CVE-2026-23461 Référence CVE CVE-2026-23462 https://www.cve.org/CVERecord?id=CVE-2026-23462 Référence CVE CVE-2026-23468 https://www.cve.org/CVERecord?id=CVE-2026-23468 Référence CVE CVE-2026-23472 https://www.cve.org/CVERecord?id=CVE-2026-23472 Référence CVE CVE-2026-31393 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0665Multiples vulnérabilités dans le noyau Linux de Red Hat

d?id=CVE-2025-39766 Référence CVE CVE-2025-39981 https://www.cve.org/CVERecord?id=CVE-2025-39981 Référence CVE CVE-2025-68183 https://www.cve.org/CVERecord?id=CVE-2025-68183 Référence CVE CVE-2025-68347 https://www.cve.org/CVERecord?id=CVE-2025-68347 Référence CVE CVE-2025-68366 https://www.cve.org/CVERecord?id=CVE-2025-68366 Référence CVE CVE-2025-68741 https://www.cve.org/CVERecord?id=CVE-2025-68741 Référence CVE CVE-2025-71116 https://www.cve.org/CVERecord?id=CVE-2025-71116 Référence CVE CVE-2026-23243 https://www.cve.org/CVERecord?id=CVE-2026-23243 Référence CVE CVE-2026-23270 https://www.cve.org/CVERecord?id=CVE-2026-23270 Référence CVE CVE-2026-23455 https://www.cve.org/CVERecord?id=CVE-2026-23455 Référence CVE CVE-2026-31408 https://www.cve.org/CVERecord?id=CVE-2026-31408 Référence CVE CVE-2026-31419 https://www.cve.org/CVERecord?id=CVE-2026-31419 Référence CVE CVE-2026-31532 https://www.cve.org/CVERecord?id=CVE-2026-31532 Référence CVE CVE-2026-31684 https://www.cve.org/CVERecord?id=CVE-2026-31684 Référence CVE CVE-2026-31685 https://www.cve.org/CVERecord?id=CVE-2026-31685 Référence CVE CVE-2026-31709 https://www.cve.org/CVERecord?id=CVE-2026-31709 Référence CVE CVE-2026-43020 https://www.cve.org/CVERecord?id=CVE-2026-43020 Référence CVE CVE-2026-43027 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-2026-23428 Référence CVE CVE-2026-23434 https://www.cve.org/CVERecord?id=CVE-2026-23434 Référence CVE CVE-2026-23438 https://www.cve.org/CVERecord?id=CVE-2026-23438 Référence CVE CVE-2026-23439 https://www.cve.org/CVERecord?id=CVE-2026-23439 Référence CVE CVE-2026-23446 https://www.cve.org/CVERecord?id=CVE-2026-23446 Référence CVE CVE-2026-23449 https://www.cve.org/CVERecord?id=CVE-2026-23449 Référence CVE CVE-2026-23450 https://www.cve.org/CVERecord?id=CVE-2026-23450 Référence CVE CVE-2026-23452 https://www.cve.org/CVERecord?id=CVE-2026-23452 Référence CVE CVE-2026-23454 https://www.cve.org/CVERecord?id=CVE-2026-23454 Référence CVE CVE-2026-23455 https://www.cve.org/CVERecord?id=CVE-2026-23455 Référence CVE CVE-2026-23456 https://www.cve.org/CVERecord?id=CVE-2026-23456 Référence CVE CVE-2026-23457 https://www.cve.org/CVERecord?id=CVE-2026-23457 Référence CVE CVE-2026-23458 https://www.cve.org/CVERecord?id=CVE-2026-23458 Référence CVE CVE-2026-23460 https://www.cve.org/CVERecord?id=CVE-2026-23460 Référence CVE CVE-2026-23462 https://www.cve.org/CVERecord?id=CVE-2026-23462 Référence CVE CVE-2026-23463 https://www.cve.org/CVERecord?id=CVE-2026-23463 Référence CVE CVE-2026-23474 https://www.cve.org/CVERecord?id=CVE-2026-23474 Référence CVE CVE-2026-23475 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-2026-23444 Référence CVE CVE-2026-23445 https://www.cve.org/CVERecord?id=CVE-2026-23445 Référence CVE CVE-2026-23446 https://www.cve.org/CVERecord?id=CVE-2026-23446 Référence CVE CVE-2026-23447 https://www.cve.org/CVERecord?id=CVE-2026-23447 Référence CVE CVE-2026-23448 https://www.cve.org/CVERecord?id=CVE-2026-23448 Référence CVE CVE-2026-23449 https://www.cve.org/CVERecord?id=CVE-2026-23449 Référence CVE CVE-2026-23450 https://www.cve.org/CVERecord?id=CVE-2026-23450 Référence CVE CVE-2026-23452 https://www.cve.org/CVERecord?id=CVE-2026-23452 Référence CVE CVE-2026-23454 https://www.cve.org/CVERecord?id=CVE-2026-23454 Référence CVE CVE-2026-23455 https://www.cve.org/CVERecord?id=CVE-2026-23455 Référence CVE CVE-2026-23456 https://www.cve.org/CVERecord?id=CVE-2026-23456 Référence CVE CVE-2026-23457 https://www.cve.org/CVERecord?id=CVE-2026-23457 Référence CVE CVE-2026-23458 https://www.cve.org/CVERecord?id=CVE-2026-23458 Référence CVE CVE-2026-23460 https://www.cve.org/CVERecord?id=CVE-2026-23460 Référence CVE CVE-2026-23461 https://www.cve.org/CVERecord?id=CVE-2026-23461 Référence CVE CVE-2026-23462 https://www.cve.org/CVERecord?id=CVE-2026-23462 Référence CVE CVE-2026-23463 https://www.cve.org/CVERecord?id=CVE-2026-23463 Référence CVE CVE-2026-23464 https://www.cve.org/CVERecord?id=

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-017183Linux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のnf_conntrack_h323にあるDecodeQ931()関数でのゼロ長チェックの問題です。DecodeQ931()のUserUserIEコードパスでは、パケットから16ビットの長さを読み取り、プロトコル識別子バイトをスキップするために1を減算してからDecodeH323_UserInformation()に渡します。もしエンコードされた長さが0の場合、減算により-1となり、この値が大きな値としてデコーダに渡され、境界外読み取りが発生します。このため、減算後の長さが正であることを確認するチェックを追加しました。

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: < 2.6.17, 5.10.253 ≤ 5.10.*, 5.15.203 ≤ 5.15.*, 6.1.167 ≤ 6.1.*, 6.6.130 ≤ 6.6.*, 6.12.78 ≤ 6.12.*, 6.18.20 ≤ 6.18.*, 6.19.10 ≤ 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
Limit access to the interactive shell of the additional GNU/Linux subssytem to trusted personnel only.
04

Evidence and provenance

Published 3 Apr 2026 · Last source change 8 Sept 2026, 08:46 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-2026-18711
Product sourceVendor CSAF · Siemens ProductCERT
Remediation sourceVendor CSAF · Siemens ProductCERT
CWE sourceNIST NVD
NVD statusNVD modified after enrichment

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

Material change intelligence

What changed after publication

View recent updates ↗
  1. Affected versionsThe structured affected or fixed version information changed.
    Before
    5e35941d990123f155b02d5663e51a24f816b6f3 < 2121f5fbe88daff0f1fc5bc47d359426c74b86b0; 5e35941d990123f155b02d5663e51a24f816b6f3 < 65fa92f79677858b14b9e4b7275f26639afe2710; 5e35941d990123f155b02d5663e51a24f816b6f3 < 495e97af9e7249ee02b72bb1d0848a6efc3700f4; 5e35941d990123f155b02d5663e51a24f816b6f3 < f5e4f4e4cdb75ec36802059a94195a31f193da60; 5e35941d990123f155b02d5663e51a24f816b6f3 < 633e8f87dad32263f6a57dccdb873f042c062111; 5e35941d990123f155b02d5663e51a24f816b6f3 < 9d00fe7d6d7c5b5f1065a6e042b54f2e44bd6df8; 5e35941d990123f155b02d5663e51a24f816b6f3 < b652b05d51003ac074b912684f9ec7486231717b; 5e35941d990123f155b02d5663e51a24f816b6f3 < f173d0f4c0f689173f8cdac79991043a4a89bf66 · Fixed: < 2.6.17; 5.10.253 ≤ 5.10.*; 5.15.203 ≤ 5.15.*; 6.1.167 ≤ 6.1.*; 6.6.130 ≤ 6.6.*; 6.12.78 ≤ 6.12.*; 6.18.20 ≤ 6.18.*; 6.19.10 ≤ 6.19.*
    After
    Linux: 5e35941d990123f155b02d5663e51a24f816b6f3 < 2121f5fbe88daff0f1fc5bc47d359426c74b86b0, 5e35941d990123f155b02d5663e51a24f816b6f3 < 65fa92f79677858b14b9e4b7275f26639afe2710, 5e35941d990123f155b02d5663e51a24f816b6f3 < 495e97af9e7249ee02b72bb1d0848a6efc3700f4, 5e35941d990123f155b02d5663e51a24f816b6f3 < f5e4f4e4cdb75ec36802059a94195a31f193da60, 5e35941d990123f155b02d5663e51a24f816b6f3 < 633e8f87dad32263f6a57dccdb873f042c062111, 5e35941d990123f155b02d5663e51a24f816b6f3 < 9d00fe7d6d7c5b5f1065a6e042b54f2e44bd6df8, 5e35941d990123f155b02d5663e51a24f816b6f3 < b652b05d51003ac074b912684f9ec7486231717b, 5e35941d990123f155b02d5663e51a24f816b6f3 < f173d0f4c0f689173f8cdac79991043a4a89bf66, 2.6.17 · Fixed: Linux: < 2.6.17, 5.10.253 ≤ 5.10.*, 5.15.203 ≤ 5.15.*, 6.1.167 ≤ 6.1.*, 6.6.130 ≤ 6.6.*, 6.12.78 ≤ 6.12.*, 6.18.20 ≤ 6.18.*, 6.19.10 ≤ 6.19.*, 7.0 ≤ *
    CNA ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2026-18711↗Vendor CSAF · Siemens ProductCERT · Siemens SSA-019113↗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-2026-23455 · cve.blacktree.nl