Full vulnerability report · 2026

CVE-2026-52930High confidence

ipc/shm: serialize orphan cleanup with shm_nattch updates

Linux · Linux

5.5MediumCVSS 3.1

Recommended action

Patch only the product branches with a verified fix

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority. Verified remediation exists for at least one product or source, but 25 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product

Operational reassessment

Published severity in operational context

Open reassessment dashboard →

Published severityMediumOperational priority:Low, lowered one band.downgradedsince 8 Sep 2026

Evidence used

No CISA KEV confirmation is currently recorded.
Exploitation requires an existing local or physical foothold with privileges.
EPSS is 0.12% for the current model date.

Compensating controls

Validate the affected product branch and deploy the verified fixed release.
Restrict local access and enforce least privilege on affected hosts.
Monitor vendor guidance and exploitation sources for a material change.

Verification

Confirm that the asset runs Linux Linux and falls inside the recorded affected range.
Verify the installed build against the product-specific fixed version after deployment.
Validate exposure, authentication requirements and compensating controls in the actual environment.
Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.

Cross-source reconciliation

Remediation availability differs by product scope

Verified remediation exists for at least one product or source, but 25 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Siemens ProductCERT: 5 affected or under-investigation product states without a fixed product state in the same current advisory
Canonical Ubuntu Security: 20 affected package states with no published fix

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 release	Source package	Vendor state	Fixed version	Evidence
Debian trixietrixie · source	`linux`	Vendor fix publishedDebian records a fixed source-package version for this release.	`6.12.94-1`	Debian Security Tracker ↗Source updated 6 Oct 2026
Debian bookwormbookworm · source	`linux`	Vendor fix publishedDebian records a fixed source-package version for this release.	`6.1.176-1`	Debian Security Tracker ↗Source updated 6 Oct 2026
Debian forkyforky · source	`linux`	Vendor fix publishedDebian records a fixed source-package version for this release.	`7.0.13-1`	Debian Security Tracker ↗Source updated 6 Oct 2026
Debian sidsid · source	`linux`	Vendor fix publishedDebian records a fixed source-package version for this release.	`7.0.13-1`	Debian Security Tracker ↗Source updated 6 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-aws`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-azure`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-azure-fde`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-azure-nvidia`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-gcp`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-gke`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-gkeop`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-ibm`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-lowlatency`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-nvidia`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-nvidia-lowlatency`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-nvidia-tegra`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-oem-6.11`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-oracle`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-raspi`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-raspi-realtime`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-realtime`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-riscv`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-xilinx`	Affected, 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 feed`	Canonical 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-2026-52930 · CSAF 2.0 · revision 13 · interimSUSE Product Security TeamCVE-2026-52930

297 known affected

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

kernel-default as component of SUSE Linux Enterprise Desktop 15 SP7
kernel-default-extra as component of SUSE Linux Enterprise Desktop 15 SP7
kernel-source as component of SUSE Linux Enterprise Desktop 15 SP7
cluster-md-kmp-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7
dlm-kmp-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7
gfs2-kmp-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7
kernel-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7
kernel-source as component of SUSE Linux Enterprise High Availability Extension 15 SP7
ocfs2-kmp-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7
kernel-default as component of SUSE Linux Enterprise High Performance Computing 12 SP4
kernel-default-base as component of SUSE Linux Enterprise High Performance Computing 12 SP4
kernel-default-devel as component of SUSE Linux Enterprise High Performance Computing 12 SP4

Summary: In the Linux kernel, the following vulnerability has been resolved: ipc/shm: serialize orphan cleanup with shm_nattch updates shm_destroy_orphaned() walks the shm idr under shm_ids(ns).rwsem, but that does not serialize all fields tested by shm_may_destroy(). In particular, shm_nattch is updated while holding shm_perm.lock, and attach paths can do that without holding the rwsem. Do not decide that an orphaned segment is unused before taking the object lock. Move the shm_may_destroy() check under shm_perm.lock, matching the other destroy paths, and unlock the segment when it no longer qualifies for removal.
Remediation: To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

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: ipc/shm: serialize orphan cleanup with shm_nattch updates shm_destroy_orphaned() walks the shm idr under shm_ids(ns).rwsem, but that does not serialize all fields tested by shm_may_destroy(). In particular, shm_nattch is updated while holding shm_perm.lock, and attach paths can do that without holding the rwsem. Do not decide that an orphaned segment is unused before taking the object lock. Move the shm_may_destroy() check under shm_perm.lock, matching the other destroy paths, and unlock the segment when it no longer qualifies for removal.
Remediation: Limit access to the interactive shell of the additional GNU/Linux subssytem to trusted personnel only.

Recommended actionPatch only the product branches with a verified fix

Fix availability varies by product

What, why and how

In the Linux kernel, the following vulnerability has been resolved: ipc/shm: serialize orphan cleanup with shm_nattch updates shm_destroy_orphaned() walks the shm idr under shm_ids(ns).rwsem, but that does not serialize all fields tested by shm_may_destroy(). In particular, shm_nattch is updated while holding shm_perm.lock, and attach paths can do that without holding the rwsem. Do not decide that an orphaned segment is unused before taking the object lock. Move the shm_may_destroy() check under shm_perm.lock, matching the other destroy paths, and unlock the segment when it no longer qualifies for removal.

What

Why

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

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

Why

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

How

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation

Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.

No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material

Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.

None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path: local access → vulnerable operation → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface: Local
Privileges required: Low: a basic authenticated account is required
User interaction: None
Attack complexity: Low: no specialised conditions are recorded
Security boundary: Unchanged: impact remains within the vulnerable component's security authority
Weakness ? CWE means Common Weakness Enumeration.: CWE not yet assigned
CVSS vector ? CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.
AVLocalAttack vector: The attacker needs local access to the vulnerable system.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRLowPrivileges required: The attacker needs basic user-level privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CNoneConfidentiality impact: No direct loss is represented by this metric.INoneIntegrity impact: No direct loss is represented by this metric.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land: The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.

Official authority intelligence

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

ENISA EUVD · EUVD-2026-38700Official EUVD mapping

Official EUVD record ↗

BSI · German · WID-SEC-2026-2056Linux Kernel: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um einen Denial-of-Service-Angriff auszulösen oder andere, nicht näher spezifizierte Angriffe durchzuführen.

Official advisory ↗

Cyber Security Agency of Singapore · English · CSA-SB-20260701Security Bulletin 1 July 2026

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 1 July 2026, published on 1 July 2026. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗

CERT-FR · French · CERTFR-2026-AVI-1252Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-52921 Référence CVE CVE-2026-52922 https://www.cve.org/CVERecord?id=CVE-2026-52922 Référence CVE CVE-2026-52923 https://www.cve.org/CVERecord?id=CVE-2026-52923 Référence CVE CVE-2026-52924 https://www.cve.org/CVERecord?id=CVE-2026-52924 Référence CVE CVE-2026-52925 https://www.cve.org/CVERecord?id=CVE-2026-52925 Référence CVE CVE-2026-52926 https://www.cve.org/CVERecord?id=CVE-2026-52926 Référence CVE CVE-2026-52927 https://www.cve.org/CVERecord?id=CVE-2026-52927 Référence CVE CVE-2026-52928 https://www.cve.org/CVERecord?id=CVE-2026-52928 Référence CVE CVE-2026-52929 https://www.cve.org/CVERecord?id=CVE-2026-52929 Référence CVE CVE-2026-52930 https://www.cve.org/CVERecord?id=CVE-2026-52930 Référence CVE CVE-2026-52931 https://www.cve.org/CVERecord?id=CVE-2026-52931 Référence CVE CVE-2026-52932 https://www.cve.org/CVERecord?id=CVE-2026-52932 Référence CVE CVE-2026-52934 https://www.cve.org/CVERecord?id=CVE-2026-52934 Référence CVE CVE-2026-52935 https://www.cve.org/CVERecord?id=CVE-2026-52935 Référence CVE CVE-2026-52936 https://www.cve.org/CVERecord?id=CVE-2026-52936 Référence CVE CVE-2026-52937 https://www.cve.org/CVERecord?id=CVE-2026-52937 Référence CVE CVE-2026-52938 https://www.cve.org/CVERecord?id=CVE-2026-52938 Référence CVE CVE-2026-52939 https://www.cve.org/CVERecord?id=

Official advisory ↗

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

Official advisory ↗

CERT-FR · French · CERTFR-2026-AVI-1203Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-52916 Référence CVE CVE-2026-52917 https://www.cve.org/CVERecord?id=CVE-2026-52917 Référence CVE CVE-2026-52918 https://www.cve.org/CVERecord?id=CVE-2026-52918 Référence CVE CVE-2026-52919 https://www.cve.org/CVERecord?id=CVE-2026-52919 Référence CVE CVE-2026-52921 https://www.cve.org/CVERecord?id=CVE-2026-52921 Référence CVE CVE-2026-52922 https://www.cve.org/CVERecord?id=CVE-2026-52922 Référence CVE CVE-2026-52924 https://www.cve.org/CVERecord?id=CVE-2026-52924 Référence CVE CVE-2026-52926 https://www.cve.org/CVERecord?id=CVE-2026-52926 Référence CVE CVE-2026-52929 https://www.cve.org/CVERecord?id=CVE-2026-52929 Référence CVE CVE-2026-52930 https://www.cve.org/CVERecord?id=CVE-2026-52930 Référence CVE CVE-2026-52931 https://www.cve.org/CVERecord?id=CVE-2026-52931 Référence CVE CVE-2026-52934 https://www.cve.org/CVERecord?id=CVE-2026-52934 Référence CVE CVE-2026-52935 https://www.cve.org/CVERecord?id=CVE-2026-52935 Référence CVE CVE-2026-52938 https://www.cve.org/CVERecord?id=CVE-2026-52938 Référence CVE CVE-2026-52939 https://www.cve.org/CVERecord?id=CVE-2026-52939 Référence CVE CVE-2026-52940 https://www.cve.org/CVERecord?id=CVE-2026-52940 Référence CVE CVE-2026-52941 https://www.cve.org/CVERecord?id=CVE-2026-52941 Référence CVE CVE-2026-52942 https://www.cve.org/CVERecord?id=

Official advisory ↗

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

Official advisory ↗

CERT-FR · French · CERTFR-2026-AVI-1091Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-46319 Référence CVE CVE-2026-46323 https://www.cve.org/CVERecord?id=CVE-2026-46323 Référence CVE CVE-2026-46324 https://www.cve.org/CVERecord?id=CVE-2026-46324 Référence CVE CVE-2026-46331 https://www.cve.org/CVERecord?id=CVE-2026-46331 Référence CVE CVE-2026-46333 https://www.cve.org/CVERecord?id=CVE-2026-46333 Référence CVE CVE-2026-52910 https://www.cve.org/CVERecord?id=CVE-2026-52910 Référence CVE CVE-2026-52921 https://www.cve.org/CVERecord?id=CVE-2026-52921 Référence CVE CVE-2026-52923 https://www.cve.org/CVERecord?id=CVE-2026-52923 Référence CVE CVE-2026-52927 https://www.cve.org/CVERecord?id=CVE-2026-52927 Référence CVE CVE-2026-52930 https://www.cve.org/CVERecord?id=CVE-2026-52930 Référence CVE CVE-2026-52937 https://www.cve.org/CVERecord?id=CVE-2026-52937 Référence CVE CVE-2026-52941 https://www.cve.org/CVERecord?id=CVE-2026-52941 Référence CVE CVE-2026-52942 https://www.cve.org/CVERecord?id=CVE-2026-52942 Référence CVE CVE-2026-52947 https://www.cve.org/CVERecord?id=CVE-2026-52947 Référence CVE CVE-2026-52956 https://www.cve.org/CVERecord?id=CVE-2026-52956 Référence CVE CVE-2026-52967 https://www.cve.org/CVERecord?id=CVE-2026-52967 Référence CVE CVE-2026-52970 https://www.cve.org/CVERecord?id=CVE-2026-52970 Référence CVE CVE-2026-52972 https://www.cve.org/CVERecord?id=

Official advisory ↗

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

d?id=CVE-2026-52913 Référence CVE CVE-2026-52915 https://www.cve.org/CVERecord?id=CVE-2026-52915 Référence CVE CVE-2026-52916 https://www.cve.org/CVERecord?id=CVE-2026-52916 Référence CVE CVE-2026-52918 https://www.cve.org/CVERecord?id=CVE-2026-52918 Référence CVE CVE-2026-52921 https://www.cve.org/CVERecord?id=CVE-2026-52921 Référence CVE CVE-2026-52922 https://www.cve.org/CVERecord?id=CVE-2026-52922 Référence CVE CVE-2026-52925 https://www.cve.org/CVERecord?id=CVE-2026-52925 Référence CVE CVE-2026-52926 https://www.cve.org/CVERecord?id=CVE-2026-52926 Référence CVE CVE-2026-52927 https://www.cve.org/CVERecord?id=CVE-2026-52927 Référence CVE CVE-2026-52930 https://www.cve.org/CVERecord?id=CVE-2026-52930 Référence CVE CVE-2026-52934 https://www.cve.org/CVERecord?id=CVE-2026-52934 Référence CVE CVE-2026-52936 https://www.cve.org/CVERecord?id=CVE-2026-52936 Référence CVE CVE-2026-52937 https://www.cve.org/CVERecord?id=CVE-2026-52937 Référence CVE CVE-2026-52941 https://www.cve.org/CVERecord?id=CVE-2026-52941 Référence CVE CVE-2026-52942 https://www.cve.org/CVERecord?id=CVE-2026-52942 Référence CVE CVE-2026-52947 https://www.cve.org/CVERecord?id=CVE-2026-52947 Référence CVE CVE-2026-52948 https://www.cve.org/CVERecord?id=CVE-2026-52948 Référence CVE CVE-2026-52951 https://www.cve.org/CVERecord?id=

Official advisory ↗

CERT-FR · French · CERTFR-2026-AVI-1029Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-46307 Référence CVE CVE-2026-46321 https://www.cve.org/CVERecord?id=CVE-2026-46321 Référence CVE CVE-2026-46322 https://www.cve.org/CVERecord?id=CVE-2026-46322 Référence CVE CVE-2026-46323 https://www.cve.org/CVERecord?id=CVE-2026-46323 Référence CVE CVE-2026-46324 https://www.cve.org/CVERecord?id=CVE-2026-46324 Référence CVE CVE-2026-46333 https://www.cve.org/CVERecord?id=CVE-2026-46333 Référence CVE CVE-2026-52910 https://www.cve.org/CVERecord?id=CVE-2026-52910 Référence CVE CVE-2026-52915 https://www.cve.org/CVERecord?id=CVE-2026-52915 Référence CVE CVE-2026-52927 https://www.cve.org/CVERecord?id=CVE-2026-52927 Référence CVE CVE-2026-52930 https://www.cve.org/CVERecord?id=CVE-2026-52930 Référence CVE CVE-2026-52933 https://www.cve.org/CVERecord?id=CVE-2026-52933 Référence CVE CVE-2026-52942 https://www.cve.org/CVERecord?id=CVE-2026-52942 Référence CVE CVE-2026-52948 https://www.cve.org/CVERecord?id=CVE-2026-52948 Référence CVE CVE-2026-52956 https://www.cve.org/CVERecord?id=CVE-2026-52956 Référence CVE CVE-2026-52958 https://www.cve.org/CVERecord?id=CVE-2026-52958 Référence CVE CVE-2026-52967 https://www.cve.org/CVERecord?id=CVE-2026-52967 Référence CVE CVE-2026-52981 https://www.cve.org/CVERecord?id=CVE-2026-52981 Référence CVE CVE-2026-52982 https://www.cve.org/CVERecord?id=

Official advisory ↗

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

d?id=CVE-2026-52920 Référence CVE CVE-2026-52921 https://www.cve.org/CVERecord?id=CVE-2026-52921 Référence CVE CVE-2026-52922 https://www.cve.org/CVERecord?id=CVE-2026-52922 Référence CVE CVE-2026-52923 https://www.cve.org/CVERecord?id=CVE-2026-52923 Référence CVE CVE-2026-52924 https://www.cve.org/CVERecord?id=CVE-2026-52924 Référence CVE CVE-2026-52925 https://www.cve.org/CVERecord?id=CVE-2026-52925 Référence CVE CVE-2026-52926 https://www.cve.org/CVERecord?id=CVE-2026-52926 Référence CVE CVE-2026-52927 https://www.cve.org/CVERecord?id=CVE-2026-52927 Référence CVE CVE-2026-52929 https://www.cve.org/CVERecord?id=CVE-2026-52929 Référence CVE CVE-2026-52930 https://www.cve.org/CVERecord?id=CVE-2026-52930 Référence CVE CVE-2026-52931 https://www.cve.org/CVERecord?id=CVE-2026-52931 Référence CVE CVE-2026-52933 https://www.cve.org/CVERecord?id=CVE-2026-52933 Référence CVE CVE-2026-52934 https://www.cve.org/CVERecord?id=CVE-2026-52934 Référence CVE CVE-2026-52935 https://www.cve.org/CVERecord?id=CVE-2026-52935 Référence CVE CVE-2026-52939 https://www.cve.org/CVERecord?id=CVE-2026-52939 Référence CVE CVE-2026-52941 https://www.cve.org/CVERecord?id=CVE-2026-52941 Référence CVE CVE-2026-52942 https://www.cve.org/CVERecord?id=CVE-2026-52942 Référence CVE CVE-2026-52943 https://www.cve.org/CVERecord?id=

Official advisory ↗

CERT-FR · French · CERTFR-2026-AVI-0812Multiples vulnérabilités dans Microsoft Azure Linux

ulletin de sécurité Microsoft CVE-2026-52913 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-52915 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-52916 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-52919 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-52921 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-52922 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-52923 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-52924 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-52926 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-52927 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-52930 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-52931 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-52934 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-52941 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-52942 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-52943 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-52947 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53080 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53133 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53135 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53143 du 27 juin 2026 Bulletin de s

Official advisory ↗

JVN iPedia · Japanese · JVNDB-2026-023078LinuxのLinux Kernelにおける不特定の脆弱性

Linuxカーネルにおいて、以下の脆弱性が修正されました：ipc/shmでは、shm_nattchの更新と孤立したセグメントのクリーンアップを直列化しています。shm_destroy_orphaned()はshm_ids(ns).rwsemの下でshm_idrを走査しますが、これはshm_may_destroy()で検査されるすべてのフィールドを直列化していません。特に、shm_nattchはshm_perm.lockを保持している間に更新されますが、アタッチ経路はrwsemを保持せずにこれを行うことができます。孤立したセグメントが未使用であると判断する前にオブジェクトロックを取得しなければなりません。shm_may_destroy()のチェックを他の破棄パスに合わせてshm_perm.lockの下に移動し、削除対象でなくなった際にはセグメントのロックを解除します。

Official advisory ↗

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: kernel-default as component of SUSE Linux Enterprise Desktop 15 SP7
kernel-default-extra as component of SUSE Linux Enterprise Desktop 15 SP7
kernel-source as component of SUSE Linux Enterprise Desktop 15 SP7
cluster-md-kmp-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7
dlm-kmp-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7
gfs2-kmp-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7
kernel-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7
kernel-source as component of SUSE Linux Enterprise High Availability Extension 15 SP7
ocfs2-kmp-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7
kernel-default as component of SUSE Linux Enterprise High Performance Computing 12 SP4
kernel-default-base as component of SUSE Linux Enterprise High Performance Computing 12 SP4
kernel-default-devel as component of SUSE Linux Enterprise High Performance Computing 12 SP4
kernel-default-man as component of SUSE Linux Enterprise High Performance Computing 12 SP4
kernel-devel as component of SUSE Linux Enterprise High Performance Computing 12 SP4
kernel-macros as component of SUSE Linux Enterprise High Performance Computing 12 SP4
kernel-source as component of SUSE Linux Enterprise High Performance Computing 12 SP4
kernel-default as component of SUSE Linux Enterprise High Performance Computing 15 SP1
kernel-default-base as component of SUSE Linux Enterprise High Performance Computing 15 SP1
kernel-default-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP1
kernel-default-man as component of SUSE Linux Enterprise High Performance Computing 15 SP1
kernel-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP1
kernel-macros as component of SUSE Linux Enterprise High Performance Computing 15 SP1
kernel-source as component of SUSE Linux Enterprise High Performance Computing 15 SP1
reiserfs-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP1
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
and 267 more
Fixed: Linux: < 3.1, 5.10.259 ≤ 5.10.*, 5.15.210 ≤ 5.15.*, 6.1.176 ≤ 6.1.*, 6.6.143 ≤ 6.6.*, 6.12.94 ≤ 6.12.*, 6.18.36 ≤ 6.18.*, 7.0.13 ≤ 7.0.*, 7.1 ≤ *
Action: Use the product-specific evidence above. Patch only products with a verified fixed release, and keep every affected or under-investigation state without a matching fix in the remediation queue.
Workaround: No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.

Evidence and provenance

Published 24 Jun 2026 · Last source change 8 Sept 2026, 08:49 UTC · CWE not yet assigned

CVE recordCVE.org · 5.2

CVSS sourceNIST NVD

EPSS source

The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.

FIRST · tracked since 2026-08-14

European sourceENISA EUVD · EUVD-2026-38700

Product sourceVendor CSAF · SUSE Product Security Team

Remediation sourceVendor CSAF · SUSE Product Security Team

CWE sourceUnavailable

NVD statusNVD modified after enrichment

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

Material change intelligence

What changed after publication

View recent updates ↗

24 Jun 2026, 07:14 UTC
Affected versionsThe structured affected or fixed version information changed.
Before
4c677e2eefdba9c5bfc4474e2e91b26ae8458a1d < b1e9aef48e4d8a0c1b54fb913077b0824ed7d650; 4c677e2eefdba9c5bfc4474e2e91b26ae8458a1d < 92cda2593cf2ed25b0e9d78e5e6d8303bba1a064; 4c677e2eefdba9c5bfc4474e2e91b26ae8458a1d < 1f0d01e35dbb228084d5187212e32c91a30dcbeb; 4c677e2eefdba9c5bfc4474e2e91b26ae8458a1d < 6560be3f6a5bb84f006f184f0c966747bb58e1a3; 4c677e2eefdba9c5bfc4474e2e91b26ae8458a1d < b5107b4ce3ad45fcf369ee2058c8910620f4b5a8; 4c677e2eefdba9c5bfc4474e2e91b26ae8458a1d < db752ebfdaf2c7f27cd9690ef48b616af068319c; 4c677e2eefdba9c5bfc4474e2e91b26ae8458a1d < 030bbc857bd51d4b25a90d931d3f8775ef22823a; 4c677e2eefdba9c5bfc4474e2e91b26ae8458a1d < 2e5c6f4fd4001562781e99bbfc7f1f0127187542 · Fixed: < 3.1; 5.10.259 ≤ 5.10.*; 5.15.210 ≤ 5.15.*; 6.1.176 ≤ 6.1.*; 6.6.143 ≤ 6.6.*; 6.12.94 ≤ 6.12.*; 6.18.36 ≤ 6.18.*; 7.0.13 ≤ 7.0.*
After
Linux: 4c677e2eefdba9c5bfc4474e2e91b26ae8458a1d < b1e9aef48e4d8a0c1b54fb913077b0824ed7d650, 4c677e2eefdba9c5bfc4474e2e91b26ae8458a1d < 92cda2593cf2ed25b0e9d78e5e6d8303bba1a064, 4c677e2eefdba9c5bfc4474e2e91b26ae8458a1d < 1f0d01e35dbb228084d5187212e32c91a30dcbeb, 4c677e2eefdba9c5bfc4474e2e91b26ae8458a1d < 6560be3f6a5bb84f006f184f0c966747bb58e1a3, 4c677e2eefdba9c5bfc4474e2e91b26ae8458a1d < b5107b4ce3ad45fcf369ee2058c8910620f4b5a8, 4c677e2eefdba9c5bfc4474e2e91b26ae8458a1d < db752ebfdaf2c7f27cd9690ef48b616af068319c, 4c677e2eefdba9c5bfc4474e2e91b26ae8458a1d < 030bbc857bd51d4b25a90d931d3f8775ef22823a, 4c677e2eefdba9c5bfc4474e2e91b26ae8458a1d < 2e5c6f4fd4001562781e99bbfc7f1f0127187542, 3.1 · Fixed: Linux: < 3.1, 5.10.259 ≤ 5.10.*, 5.15.210 ≤ 5.15.*, 6.1.176 ≤ 6.1.*, 6.6.143 ≤ 6.6.*, 6.12.94 ≤ 6.12.*, 6.18.36 ≤ 6.18.*, 7.0.13 ≤ 7.0.*, 7.1 ≤ *
CNA ↗

2026-06-24CVE published

2026-09-08Fixed release or patch reference recorded

ENISA EUVD · EUVD-2026-38700↗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.

ipc/shm: serialize orphan cleanup with shm_nattch updates

Published severity in operational context

Evidence used

Compensating controls

Verification

Remediation availability differs by product scope

Release-specific package status

Authoritative vendor CSAF and VEX advisories

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

ENISA European Vulnerability Database

EUVD-2026-38700

What, why and how

Exploit reality and attack path

Official authority intelligence

Patch and workaround

Evidence and provenance

What changed after publication