BlackTreeIndependent security intelligence

Full vulnerability report · 2026

CVE-2026-23271High confidence

perf: Fix __perf_event_overflow() vs perf_remove_from_context() race

Linux · Linux

7.8HighCVSS 3.1

Recommended action

Within 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available

Distribution package intelligence

Ubuntu vendor package status

Canonical’s release and source-package findings are shown separately from local repository availability.

20 package states

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.

Ubuntu release	Source package	Vendor state	Fixed version	Evidence
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 record ↗Source updated 8 Sept 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 record ↗Source updated 8 Sept 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 record ↗Source updated 8 Sept 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 record ↗Source updated 8 Sept 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 record ↗Source updated 8 Sept 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 record ↗Source updated 8 Sept 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 record ↗Source updated 8 Sept 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 record ↗Source updated 8 Sept 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 record ↗Source updated 8 Sept 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 record ↗Source updated 8 Sept 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 record ↗Source updated 8 Sept 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 record ↗Source updated 8 Sept 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 record ↗Source updated 8 Sept 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 record ↗Source updated 8 Sept 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 record ↗Source updated 8 Sept 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 record ↗Source updated 8 Sept 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 record ↗Source updated 8 Sept 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 record ↗Source updated 8 Sept 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 record ↗Source updated 8 Sept 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 record ↗Source updated 8 Sept 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

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: perf: Fix __perf_event_overflow() vs perf_remove_from_context() race Make sure that __perf_event_overflow() runs with IRQs disabled for all possible callchains. Specifically the software events can end up running it with only preemption disabled. This opens up a race vs perf_event_exit_event() and friends that will go and free various things the overflow path expects to be present, like the BPF program.
Remediation: Limit access to the interactive shell of the additional GNU/Linux subssytem to trusted personnel only.

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: perf: Fix __perf_event_overflow() vs perf_remove_from_context() race Make sure that __perf_event_overflow() runs with IRQs disabled for all possible callchains. Specifically the software events can end up running it with only preemption disabled. This opens up a race vs perf_event_exit_event() and friends that will go and free various things the overflow path expects to be present, like the BPF program.
Remediation: Limit access to the interactive shell of the additional GNU/Linux subssytem to trusted personnel only.

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-2026-13605

No EUVD known-exploited evidence

In the Linux kernel, the following vulnerability has been resolved: perf: Fix __perf_event_overflow() vs perf_remove_from_context() race Make sure that __perf_event_overflow() runs with IRQs disabled for all possible callchains. Specifically the software events can end up running it with only preemption disabled. This opens up a race vs perf_event_exit_event() and friends that will go and free various things the overflow path expects to be present, like the BPF program.

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: 7.8 · CVSS 3.1
Advisory evidence: No linked advisory details stored yet

Recommended actionWithin 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available

What, why and how

What

Why

The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.

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

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 → Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface: Local
Privileges required: Low: a basic authenticated account is required
User interaction: None
Attack complexity: Low: no specialised conditions are recorded
Security boundary: Unchanged: impact remains within the vulnerable component's security authority
Weakness ? CWE means Common Weakness Enumeration: a standard category for the underlying weakness.: CWE-362 ↗
CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition'). The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.
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:H/I:H/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.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land: The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.

CWE-362

Official authority intelligence

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

ENISA EUVD · EUVD-2026-13605Official EUVD mapping

Official EUVD record

BSI · German · WID-SEC-W-2026-0809Linux Kernel: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um nicht näher spezifizierte Angriffe durchzuführen, die möglicherweise zu einem Denial-of-Service-Zustand, zur Manipulation und Offenlegung von Daten oder zu einer Speicherbeschädigung führen können.

Official advisory

CERT-FR · French · CERTFR-2026-AVI-1066Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-23207 Référence CVE CVE-2026-23226 https://www.cve.org/CVERecord?id=CVE-2026-23226 Référence CVE CVE-2026-23227 https://www.cve.org/CVERecord?id=CVE-2026-23227 Référence CVE CVE-2026-23244 https://www.cve.org/CVERecord?id=CVE-2026-23244 Référence CVE CVE-2026-23245 https://www.cve.org/CVERecord?id=CVE-2026-23245 Référence CVE CVE-2026-23246 https://www.cve.org/CVERecord?id=CVE-2026-23246 Référence CVE CVE-2026-23253 https://www.cve.org/CVERecord?id=CVE-2026-23253 Référence CVE CVE-2026-23255 https://www.cve.org/CVERecord?id=CVE-2026-23255 Référence CVE CVE-2026-23270 https://www.cve.org/CVERecord?id=CVE-2026-23270 Référence CVE CVE-2026-23271 https://www.cve.org/CVERecord?id=CVE-2026-23271 Référence CVE CVE-2026-23276 https://www.cve.org/CVERecord?id=CVE-2026-23276 Référence CVE CVE-2026-23277 https://www.cve.org/CVERecord?id=CVE-2026-23277 Référence CVE CVE-2026-23279 https://www.cve.org/CVERecord?id=CVE-2026-23279 Référence CVE CVE-2026-23281 https://www.cve.org/CVERecord?id=CVE-2026-23281 Référence CVE CVE-2026-23284 https://www.cve.org/CVERecord?id=CVE-2026-23284 Référence CVE CVE-2026-23285 https://www.cve.org/CVERecord?id=CVE-2026-23285 Référence CVE CVE-2026-23286 https://www.cve.org/CVERecord?id=CVE-2026-23286 Référence CVE CVE-2026-23287 https://www.cve.org/CVERecord?id=

Official advisory

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

d?id=CVE-2026-23253 Référence CVE CVE-2026-23255 https://www.cve.org/CVERecord?id=CVE-2026-23255 Référence CVE CVE-2026-23256 https://www.cve.org/CVERecord?id=CVE-2026-23256 Référence CVE CVE-2026-23257 https://www.cve.org/CVERecord?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-2026-23266 https://www.cve.org/CVERecord?id=CVE-2026-23266 Référence CVE CVE-2026-23267 https://www.cve.org/CVERecord?id=CVE-2026-23267 Référence CVE CVE-2026-23270 https://www.cve.org/CVERecord?id=CVE-2026-23270 Référence CVE CVE-2026-23271 https://www.cve.org/CVERecord?id=CVE-2026-23271 Référence CVE CVE-2026-23272 https://www.cve.org/CVERecord?id=CVE-2026-23272 Référence CVE CVE-2026-23276 https://www.cve.org/CVERecord?id=CVE-2026-23276 Référence CVE CVE-2026-23277 https://www.cve.org/CVERecord?id=CVE-2026-23277 Référence CVE CVE-2026-23278 https://www.cve.org/CVERecord?id=CVE-2026-23278 Référence CVE CVE-2026-23279 https://www.cve.org/CVERecord?id=CVE-2026-23279 Référence CVE CVE-2026-23281 https://www.cve.org/CVERecord?id=CVE-2026-23281 Référence CVE CVE-2026-23284 https://www.cve.org/CVERecord?id=CVE-2026-23284 Référence CVE CVE-2026-23285 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-2026-23242 Référence CVE CVE-2026-23243 https://www.cve.org/CVERecord?id=CVE-2026-23243 Référence CVE CVE-2026-23244 https://www.cve.org/CVERecord?id=CVE-2026-23244 Référence CVE CVE-2026-23245 https://www.cve.org/CVERecord?id=CVE-2026-23245 Référence CVE CVE-2026-23246 https://www.cve.org/CVERecord?id=CVE-2026-23246 Référence CVE CVE-2026-23253 https://www.cve.org/CVERecord?id=CVE-2026-23253 Référence CVE CVE-2026-23255 https://www.cve.org/CVERecord?id=CVE-2026-23255 Référence CVE CVE-2026-23266 https://www.cve.org/CVERecord?id=CVE-2026-23266 Référence CVE CVE-2026-23270 https://www.cve.org/CVERecord?id=CVE-2026-23270 Référence CVE CVE-2026-23271 https://www.cve.org/CVERecord?id=CVE-2026-23271 Référence CVE CVE-2026-23272 https://www.cve.org/CVERecord?id=CVE-2026-23272 Référence CVE CVE-2026-23276 https://www.cve.org/CVERecord?id=CVE-2026-23276 Référence CVE CVE-2026-23277 https://www.cve.org/CVERecord?id=CVE-2026-23277 Référence CVE CVE-2026-23278 https://www.cve.org/CVERecord?id=CVE-2026-23278 Référence CVE CVE-2026-23279 https://www.cve.org/CVERecord?id=CVE-2026-23279 Référence CVE CVE-2026-23281 https://www.cve.org/CVERecord?id=CVE-2026-23281 Référence CVE CVE-2026-23284 https://www.cve.org/CVERecord?id=CVE-2026-23284 Référence CVE CVE-2026-23285 https://www.cve.org/CVERecord?id=

Official advisory

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

025-71189, CVE-2025-71190, CVE-2025-71191, CVE-2025-71197, CVE-2025-71221, CVE-2025-71265, CVE-2025-71266, CVE-2025-71267, CVE-2026-3497, CVE-2026-22977, CVE-2026-22979, CVE-2026-22980, CVE-2026-22982, CVE-2026-22992, CVE-2026-22994, CVE-2026-23003, CVE-2026-23005, CVE-2026-23010, CVE-2026-23011, CVE-2026-23019, CVE-2026-23026, CVE-2026-23038, CVE-2026-23054, CVE-2026-23060, CVE-2026-23083, CVE-2026-23084, CVE-2026-23086, CVE-2026-23087, CVE-2026-23095, CVE-2026-23100, CVE-2026-23103, CVE-2026-23110, CVE-2026-23111, CVE-2026-23113, CVE-2026-23154, CVE-2026-23204, CVE-2026-23231, CVE-2026-23242, 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

Official advisory

CERT-FR · French · CERTFR-2026-AVI-0782Multiples vulnérabilités dans le noyau Linux de SUSE

:2450-1 du 18 juin 2026 https://www.suse.com/support/update/announcement/2026/suse-su-20262450-1 Référence CVE CVE-2023-20585 https://www.cve.org/CVERecord?id=CVE-2023-20585 Référence CVE CVE-2025-10263 https://www.cve.org/CVERecord?id=CVE-2025-10263 Référence CVE CVE-2025-38549 https://www.cve.org/CVERecord?id=CVE-2025-38549 Référence CVE CVE-2025-40253 https://www.cve.org/CVERecord?id=CVE-2025-40253 Référence CVE CVE-2025-68324 https://www.cve.org/CVERecord?id=CVE-2025-68324 Référence CVE CVE-2025-68822 https://www.cve.org/CVERecord?id=CVE-2025-68822 Référence CVE CVE-2026-23254 https://www.cve.org/CVERecord?id=CVE-2026-23254 Référence CVE CVE-2026-23271 https://www.cve.org/CVERecord?id=CVE-2026-23271 Référence CVE CVE-2026-23279 https://www.cve.org/CVERecord?id=CVE-2026-23279 Référence CVE CVE-2026-23303 https://www.cve.org/CVERecord?id=CVE-2026-23303 Référence CVE CVE-2026-23327 https://www.cve.org/CVERecord?id=CVE-2026-23327 Référence CVE CVE-2026-23359 https://www.cve.org/CVERecord?id=CVE-2026-23359 Référence CVE CVE-2026-23367 https://www.cve.org/CVERecord?id=CVE-2026-23367 Référence CVE CVE-2026-23380 https://www.cve.org/CVERecord?id=CVE-2026-23380 Référence CVE CVE-2026-23396 https://www.cve.org/CVERecord?id=CVE-2026-23396 Référence CVE CVE-2026-23438 https://www.cve.org/CVERecord?id=

Official advisory

CERT-FR · French · CERTFR-2026-AVI-0745Multiples vulnérabilités dans le noyau Linux de SUSE

Bulletin de sécurité SUSE SUSE-SU-2026:2317-1 du 09 juin 2026 https://www.suse.com/support/update/announcement/2026/suse-su-20262317-1 Bulletin de sécurité SUSE SUSE-SU-2026:2331-1 du 10 juin 2026 https://www.suse.com/support/update/announcement/2026/suse-su-20262331-1 Bulletin de sécurité SUSE SUSE-SU-2026:2332-1 du 10 juin 2026 https://www.suse.com/support/update/announcement/2026/suse-su-20262332-1 Référence CVE CVE-2023-20585 https://www.cve.org/CVERecord?id=CVE-2023-20585 Référence CVE CVE-2025-54518 https://www.cve.org/CVERecord?id=CVE-2025-54518 Référence CVE CVE-2026-23243 https://www.cve.org/CVERecord?id=CVE-2026-23243 Référence CVE CVE-2026-23271 https://www.cve.org/CVERecord?id=CVE-2026-23271 Référence CVE CVE-2026-23274 https://www.cve.org/CVERecord?id=CVE-2026-23274 Référence CVE CVE-2026-23317 https://www.cve.org/CVERecord?id=CVE-2026-23317 Référence CVE CVE-2026-23359 https://www.cve.org/CVERecord?id=CVE-2026-23359 Référence CVE CVE-2026-23380 https://www.cve.org/CVERecord?id=CVE-2026-23380 Référence CVE CVE-2026-23437 https://www.cve.org/CVERecord?id=CVE-2026-23437 Référence CVE CVE-2026-23444 https://www.cve.org/CVERecord?id=CVE-2026-23444 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=

Official advisory

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

d?id=CVE-2026-23246 Référence CVE CVE-2026-23253 https://www.cve.org/CVERecord?id=CVE-2026-23253 Référence CVE CVE-2026-23260 https://www.cve.org/CVERecord?id=CVE-2026-23260 Référence CVE CVE-2026-23261 https://www.cve.org/CVERecord?id=CVE-2026-23261 Référence CVE CVE-2026-23262 https://www.cve.org/CVERecord?id=CVE-2026-23262 Référence CVE CVE-2026-23264 https://www.cve.org/CVERecord?id=CVE-2026-23264 Référence CVE CVE-2026-23266 https://www.cve.org/CVERecord?id=CVE-2026-23266 Référence CVE CVE-2026-23268 https://www.cve.org/CVERecord?id=CVE-2026-23268 Référence CVE CVE-2026-23269 https://www.cve.org/CVERecord?id=CVE-2026-23269 Référence CVE CVE-2026-23271 https://www.cve.org/CVERecord?id=CVE-2026-23271 Référence CVE CVE-2026-23273 https://www.cve.org/CVERecord?id=CVE-2026-23273 Référence CVE CVE-2026-23274 https://www.cve.org/CVERecord?id=CVE-2026-23274 Référence CVE CVE-2026-23276 https://www.cve.org/CVERecord?id=CVE-2026-23276 Référence CVE CVE-2026-23279 https://www.cve.org/CVERecord?id=CVE-2026-23279 Référence CVE CVE-2026-23290 https://www.cve.org/CVERecord?id=CVE-2026-23290 Référence CVE CVE-2026-23291 https://www.cve.org/CVERecord?id=CVE-2026-23291 Référence CVE CVE-2026-23298 https://www.cve.org/CVERecord?id=CVE-2026-23298 Référence CVE CVE-2026-23300 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-2026-23245 Référence CVE CVE-2026-23246 https://www.cve.org/CVERecord?id=CVE-2026-23246 Référence CVE CVE-2026-23249 https://www.cve.org/CVERecord?id=CVE-2026-23249 Référence CVE CVE-2026-23250 https://www.cve.org/CVERecord?id=CVE-2026-23250 Référence CVE CVE-2026-23251 https://www.cve.org/CVERecord?id=CVE-2026-23251 Référence CVE CVE-2026-23252 https://www.cve.org/CVERecord?id=CVE-2026-23252 Référence CVE CVE-2026-23253 https://www.cve.org/CVERecord?id=CVE-2026-23253 Référence CVE CVE-2026-23255 https://www.cve.org/CVERecord?id=CVE-2026-23255 Référence CVE CVE-2026-23270 https://www.cve.org/CVERecord?id=CVE-2026-23270 Référence CVE CVE-2026-23271 https://www.cve.org/CVERecord?id=CVE-2026-23271 Référence CVE CVE-2026-23273 https://www.cve.org/CVERecord?id=CVE-2026-23273 Référence CVE CVE-2026-23274 https://www.cve.org/CVERecord?id=CVE-2026-23274 Référence CVE CVE-2026-23276 https://www.cve.org/CVERecord?id=CVE-2026-23276 Référence CVE CVE-2026-23277 https://www.cve.org/CVERecord?id=CVE-2026-23277 Référence CVE CVE-2026-23278 https://www.cve.org/CVERecord?id=CVE-2026-23278 Référence CVE CVE-2026-23279 https://www.cve.org/CVERecord?id=CVE-2026-23279 Référence CVE CVE-2026-23281 https://www.cve.org/CVERecord?id=CVE-2026-23281 Référence CVE CVE-2026-23284 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-2026-23157 Référence CVE CVE-2026-23204 https://www.cve.org/CVERecord?id=CVE-2026-23204 Référence CVE CVE-2026-23227 https://www.cve.org/CVERecord?id=CVE-2026-23227 Référence CVE CVE-2026-23231 https://www.cve.org/CVERecord?id=CVE-2026-23231 Référence CVE CVE-2026-23242 https://www.cve.org/CVERecord?id=CVE-2026-23242 Référence CVE CVE-2026-23243 https://www.cve.org/CVERecord?id=CVE-2026-23243 Référence CVE CVE-2026-23245 https://www.cve.org/CVERecord?id=CVE-2026-23245 Référence CVE CVE-2026-23253 https://www.cve.org/CVERecord?id=CVE-2026-23253 Référence CVE CVE-2026-23270 https://www.cve.org/CVERecord?id=CVE-2026-23270 Référence CVE CVE-2026-23271 https://www.cve.org/CVERecord?id=CVE-2026-23271 Référence CVE CVE-2026-23273 https://www.cve.org/CVERecord?id=CVE-2026-23273 Référence CVE CVE-2026-23274 https://www.cve.org/CVERecord?id=CVE-2026-23274 Référence CVE CVE-2026-23277 https://www.cve.org/CVERecord?id=CVE-2026-23277 Référence CVE CVE-2026-23279 https://www.cve.org/CVERecord?id=CVE-2026-23279 Référence CVE CVE-2026-23281 https://www.cve.org/CVERecord?id=CVE-2026-23281 Référence CVE CVE-2026-23284 https://www.cve.org/CVERecord?id=CVE-2026-23284 Référence CVE CVE-2026-23286 https://www.cve.org/CVERecord?id=CVE-2026-23286 Référence CVE CVE-2026-23287 https://www.cve.org/CVERecord?id=

Official advisory

CERT-FR · French · CERTFR-2026-AVI-0376Multiples vulnérabilités dans les produits Microsoft

s vulnérabilités dans les produits Microsoft Gestion du document Référence CERTFR-2026-AVI-0376 Titre Multiples vulnérabilités dans les produits Microsoft Date de la première version 30 mars 2026 Date de la dernière version 30 mars 2026 Source(s) Bulletin de sécurité Microsoft CVE-2026-23244 du 19 mars 2026 Bulletin de sécurité Microsoft CVE-2026-23245 du 19 mars 2026 Bulletin de sécurité Microsoft CVE-2026-23246 du 19 mars 2026 Bulletin de sécurité Microsoft CVE-2026-23253 du 20 mars 2026 Bulletin de sécurité Microsoft CVE-2026-23268 du 20 mars 2026 Bulletin de sécurité Microsoft CVE-2026-23269 du 20 mars 2026 Bulletin de sécurité Microsoft CVE-2026-23271 du 21 mars 2026 Bulletin de sécurité Microsoft CVE-2026-23274 du 21 mars 2026 Bulletin de sécurité Microsoft CVE-2026-23277 du 21 mars 2026 Bulletin de sécurité Microsoft CVE-2026-30922 du 21 mars 2026 Bulletin de sécurité Microsoft CVE-2026-23100 du 22 mars 2026 Bulletin de sécurité Microsoft CVE-2026-4437 du 22 mars 2026 Bulletin de sécurité Microsoft CVE-2026-4438 du 22 mars 2026 Bulletin de sécurité Microsoft CVE-2025-69720 du 25 mars 2026 Bulletin de sécurité Microsoft CVE-2026-2369 du 25 mars 2026 Bulletin de sécurité Microsoft CVE-2026-23279 du 26 mars 2026 Bulletin de sécurité Microsoft CVE-2026-23281 du 26 mars 2026 Bulletin de sécu

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.: Patch available
Affected: 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
Fixed: < 2.6.31; 6.1.167 ≤ 6.1.*; 6.6.130 ≤ 6.6.*; 6.12.77 ≤ 6.12.*; 6.18.17 ≤ 6.18.*; 6.19.7 ≤ 6.19.*; 7.0 ≤ *
Action: Review the linked authoritative reference and apply the recorded fixed release appropriate to the affected product branch.
Workaround: Limit access to the interactive shell of the additional GNU/Linux subssytem to trusted personnel only.

Evidence and provenance

Published 20 Mar 2026 · Last source change 8 Sept 2026, 08:45 UTC · CWE-362 · Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

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-2026-13605

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 →

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

2026-03-20CVE published

2026-09-08Fixed release or patch reference recorded

ENISA EUVD · EUVD-2026-13605↗Vendor CSAF · Siemens ProductCERT↗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.

perf: Fix __perf_event_overflow() vs perf_remove_from_context() race

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

EUVD-2026-13605

What, why and how

Exploit reality and attack path

Official authority intelligence

Patch and workaround

Evidence and provenance

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