BlackTreeCVE Intelligence
← Back to the CVE catalogue
Full vulnerability report · 2025
CVE-2025-21745High confidence

blk-cgroup: Fix class @block_class's subsystem refcount leakage

Linux · Linux

5.5MediumCVSS 3.1
Recommended action
Scheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
Distribution package intelligence

Ubuntu vendor package status

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

19 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 releaseSource packageVendor stateFixed versionEvidence
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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 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.

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: blk-cgroup: Fix class @block_class's subsystem refcount leakage blkcg_fill_root_iostats() iterates over @block_class's devices by class_dev_iter_(init|next)(), but does not end iterating with class_dev_iter_exit(), so causes the class's subsystem refcount leakage. Fix by ending the iterating with class_dev_iter_exit().
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: blk-cgroup: Fix class @block_class's subsystem refcount leakage blkcg_fill_root_iostats() iterates over @block_class's devices by class_dev_iter_(init|next)(), but does not end iterating with class_dev_iter_exit(), so causes the class's subsystem refcount leakage. Fix by ending the iterating with class_dev_iter_exit().
Remediation
Limit access to the interactive shell of the additional GNU/Linux subssytem to trusted personnel only.
SSA-265688 · CSAF 2.0 · revision 13 · interimSiemens ProductCERTSSA-265688: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 TM MFP V1.1
1 known affected

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

  • SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
Summary
In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: Fix class @block_class's subsystem refcount leakage blkcg_fill_root_iostats() iterates over @block_class's devices by class_dev_iter_(init|next)(), but does not end iterating with class_dev_iter_exit(), so causes the class's subsystem refcount leakage. Fix by ending the iterating with class_dev_iter_exit().
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.

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

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-2025-5179

No EUVD known-exploited evidence

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: Fix class @block_class's subsystem refcount leakage blkcg_fill_root_iostats() iterates over @block_class's devices by class_dev_iter_(init|next)(), but does not end iterating with class_dev_iter_exit(), so causes the class's subsystem refcount leakage. Fix by ending the iterating with class_dev_iter_exit().

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
0.0
Advisory evidence
No linked advisory details stored yet
Recommended actionScheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
01

What, why and how

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: Fix class @block_class's subsystem refcount leakage blkcg_fill_root_iostats() iterates over @block_class's devices by class_dev_iter_(init|next)(), but does not end iterating with class_dev_iter_exit(), so causes the class's subsystem refcount leakage. Fix by ending the iterating with class_dev_iter_exit().

What

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: Fix class @block_class's subsystem refcount leakage blkcg_fill_root_iostats() iterates over @block_class's devices by class_dev_iter_(init|next)(), but does not end iterating with class_dev_iter_exit(), so causes the class's subsystem refcount leakage. Fix by ending the iterating with class_dev_iter_exit().

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

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: Fix class @block_class's subsystem refcount leakage blkcg_fill_root_iostats() iterates over @block_class's devices by class_dev_iter_(init|next)(), but does not end iterating with class_dev_iter_exit(), so causes the class's subsystem refcount leakage. Fix by ending the iterating with class_dev_iter_exit().

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.

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
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.
A

Official authority intelligence

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

ENISA EUVD · EUVD-2025-5179Official EUVD mapping

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: Fix class @block_class's subsystem refcount leakage blkcg_fill_root_iostats() iterates over @block_class's devices by class_dev_iter_(init|next)(), but does not end iterating with class_dev_iter_exit(), so causes the class's subsystem refcount leakage. Fix by ending the iterating with class_dev_iter_exit().

Official EUVD record ↗
BSI · German · WID-SEC-2026-2253IBM Security Verify Access: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in IBM Security Verify Access ausnutzen, um erweiterte Berechtigungen zu erlangen, beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, Daten zu manipulieren, sensible Informationen offenzulegen und andere, nicht näher bezeichnete Angriffe durchzuführen.

Official advisory ↗
BSI · German · WID-SEC-2025-0453Linux Kernel: Mehrere Schwachstellen

Ein entfernter Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.

Official advisory ↗
BSI · German · WID-SEC-2025-1439Dell Secure Connect Gateway: Mehrere Schwachstellen ermöglichen nicht spezifizierten Angriff

Ein Angreifer kann mehrere Schwachstellen in Dell Secure Connect Gateway ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen.

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

24-36927, CVE-2024-42079, CVE-2024-46786, CVE-2024-47736, CVE-2024-47809, CVE-2024-49968, CVE-2024-49994, CVE-2024-49998, CVE-2024-50014, CVE-2024-50063, CVE-2024-50164, CVE-2024-50298, CVE-2024-53124, CVE-2024-53170, CVE-2024-54458, CVE-2024-56631, CVE-2024-56703, CVE-2024-56719, CVE-2024-57917, CVE-2024-57924, CVE-2024-57973, CVE-2024-57977, CVE-2024-57979, CVE-2024-58011, CVE-2024-58016, CVE-2024-58020, CVE-2024-58056, CVE-2024-58058, CVE-2024-58061, CVE-2024-58086, CVE-2025-21645, CVE-2025-21648, CVE-2025-21655, CVE-2025-21676, CVE-2025-21682, CVE-2025-21702, CVE-2025-21705, CVE-2025-21706, CVE-2025-21707, CVE-2025-21718, CVE-2025-21731, CVE-2025-21745, CVE-2025-21758, CVE-2025-21760, CVE-2025-21764, CVE-2025-21765, CVE-2025-21780, CVE-2025-21795, CVE-2025-21796, CVE-2025-21802, CVE-2025-21814, CVE-2025-21846, CVE-2025-21853, CVE-2025-21861, CVE-2025-21864, CVE-2025-21867, CVE-2025-21875, CVE-2025-21887, CVE-2025-21913, CVE-2025-21919, CVE-2025-21925, CVE-2025-21926, CVE-2025-21938, CVE-2025-21959, CVE-2025-21999, CVE-2025-22005, CVE-2025-22015, CVE-2025-22055, CVE-2025-22056, CVE-2025-22060, CVE-2025-22083, CVE-2025-22090, CVE-2025-22095, CVE-2025-22107, CVE-2025-22111, CVE-2025-22121, CVE-2025-23136, CVE-2025-23143, CVE-2025-37785, CVE-2025-37909, CVE-2025-37917, CVE-2025-37945, CVE-2025

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-0969Multiples vulnérabilités dans les produits VMware

d?id=CVE-2025-21734 Référence CVE CVE-2025-21735 https://www.cve.org/CVERecord?id=CVE-2025-21735 Référence CVE CVE-2025-21736 https://www.cve.org/CVERecord?id=CVE-2025-21736 Référence CVE CVE-2025-21738 https://www.cve.org/CVERecord?id=CVE-2025-21738 Référence CVE CVE-2025-21739 https://www.cve.org/CVERecord?id=CVE-2025-21739 Référence CVE CVE-2025-21741 https://www.cve.org/CVERecord?id=CVE-2025-21741 Référence CVE CVE-2025-21742 https://www.cve.org/CVERecord?id=CVE-2025-21742 Référence CVE CVE-2025-21743 https://www.cve.org/CVERecord?id=CVE-2025-21743 Référence CVE CVE-2025-21744 https://www.cve.org/CVERecord?id=CVE-2025-21744 Référence CVE CVE-2025-21745 https://www.cve.org/CVERecord?id=CVE-2025-21745 Référence CVE CVE-2025-21746 https://www.cve.org/CVERecord?id=CVE-2025-21746 Référence CVE CVE-2025-21748 https://www.cve.org/CVERecord?id=CVE-2025-21748 Référence CVE CVE-2025-21749 https://www.cve.org/CVERecord?id=CVE-2025-21749 Référence CVE CVE-2025-21750 https://www.cve.org/CVERecord?id=CVE-2025-21750 Référence CVE CVE-2025-21753 https://www.cve.org/CVERecord?id=CVE-2025-21753 Référence CVE CVE-2025-21754 https://www.cve.org/CVERecord?id=CVE-2025-21754 Référence CVE CVE-2025-21758 https://www.cve.org/CVERecord?id=CVE-2025-21758 Référence CVE CVE-2025-21759 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-0758Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2025-21734 Référence CVE CVE-2025-21735 https://www.cve.org/CVERecord?id=CVE-2025-21735 Référence CVE CVE-2025-21736 https://www.cve.org/CVERecord?id=CVE-2025-21736 Référence CVE CVE-2025-21738 https://www.cve.org/CVERecord?id=CVE-2025-21738 Référence CVE CVE-2025-21739 https://www.cve.org/CVERecord?id=CVE-2025-21739 Référence CVE CVE-2025-21741 https://www.cve.org/CVERecord?id=CVE-2025-21741 Référence CVE CVE-2025-21742 https://www.cve.org/CVERecord?id=CVE-2025-21742 Référence CVE CVE-2025-21743 https://www.cve.org/CVERecord?id=CVE-2025-21743 Référence CVE CVE-2025-21744 https://www.cve.org/CVERecord?id=CVE-2025-21744 Référence CVE CVE-2025-21745 https://www.cve.org/CVERecord?id=CVE-2025-21745 Référence CVE CVE-2025-21746 https://www.cve.org/CVERecord?id=CVE-2025-21746 Référence CVE CVE-2025-21748 https://www.cve.org/CVERecord?id=CVE-2025-21748 Référence CVE CVE-2025-21749 https://www.cve.org/CVERecord?id=CVE-2025-21749 Référence CVE CVE-2025-21750 https://www.cve.org/CVERecord?id=CVE-2025-21750 Référence CVE CVE-2025-21753 https://www.cve.org/CVERecord?id=CVE-2025-21753 Référence CVE CVE-2025-21754 https://www.cve.org/CVERecord?id=CVE-2025-21754 Référence CVE CVE-2025-21758 https://www.cve.org/CVERecord?id=CVE-2025-21758 Référence CVE CVE-2025-21759 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-0625Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2025-21734 Référence CVE CVE-2025-21735 https://www.cve.org/CVERecord?id=CVE-2025-21735 Référence CVE CVE-2025-21736 https://www.cve.org/CVERecord?id=CVE-2025-21736 Référence CVE CVE-2025-21738 https://www.cve.org/CVERecord?id=CVE-2025-21738 Référence CVE CVE-2025-21739 https://www.cve.org/CVERecord?id=CVE-2025-21739 Référence CVE CVE-2025-21741 https://www.cve.org/CVERecord?id=CVE-2025-21741 Référence CVE CVE-2025-21742 https://www.cve.org/CVERecord?id=CVE-2025-21742 Référence CVE CVE-2025-21743 https://www.cve.org/CVERecord?id=CVE-2025-21743 Référence CVE CVE-2025-21744 https://www.cve.org/CVERecord?id=CVE-2025-21744 Référence CVE CVE-2025-21745 https://www.cve.org/CVERecord?id=CVE-2025-21745 Référence CVE CVE-2025-21748 https://www.cve.org/CVERecord?id=CVE-2025-21748 Référence CVE CVE-2025-21749 https://www.cve.org/CVERecord?id=CVE-2025-21749 Référence CVE CVE-2025-21750 https://www.cve.org/CVERecord?id=CVE-2025-21750 Référence CVE CVE-2025-21753 https://www.cve.org/CVERecord?id=CVE-2025-21753 Référence CVE CVE-2025-21754 https://www.cve.org/CVERecord?id=CVE-2025-21754 Référence CVE CVE-2025-21798 https://www.cve.org/CVERecord?id=CVE-2025-21798 Référence CVE CVE-2025-21799 https://www.cve.org/CVERecord?id=CVE-2025-21799 Référence CVE CVE-2025-21801 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-0559Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2025-21721 Référence CVE CVE-2025-21722 https://www.cve.org/CVERecord?id=CVE-2025-21722 Référence CVE CVE-2025-21726 https://www.cve.org/CVERecord?id=CVE-2025-21726 Référence CVE CVE-2025-21727 https://www.cve.org/CVERecord?id=CVE-2025-21727 Référence CVE CVE-2025-21728 https://www.cve.org/CVERecord?id=CVE-2025-21728 Référence CVE CVE-2025-21731 https://www.cve.org/CVERecord?id=CVE-2025-21731 Référence CVE CVE-2025-21735 https://www.cve.org/CVERecord?id=CVE-2025-21735 Référence CVE CVE-2025-21736 https://www.cve.org/CVERecord?id=CVE-2025-21736 Référence CVE CVE-2025-21744 https://www.cve.org/CVERecord?id=CVE-2025-21744 Référence CVE CVE-2025-21745 https://www.cve.org/CVERecord?id=CVE-2025-21745 Référence CVE CVE-2025-21748 https://www.cve.org/CVERecord?id=CVE-2025-21748 Référence CVE CVE-2025-21749 https://www.cve.org/CVERecord?id=CVE-2025-21749 Référence CVE CVE-2025-21753 https://www.cve.org/CVERecord?id=CVE-2025-21753 Référence CVE CVE-2025-21758 https://www.cve.org/CVERecord?id=CVE-2025-21758 Référence CVE CVE-2025-21760 https://www.cve.org/CVERecord?id=CVE-2025-21760 Référence CVE CVE-2025-21761 https://www.cve.org/CVERecord?id=CVE-2025-21761 Référence CVE CVE-2025-21762 https://www.cve.org/CVERecord?id=CVE-2025-21762 Référence CVE CVE-2025-21763 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-0509Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2025-21734 Référence CVE CVE-2025-21735 https://www.cve.org/CVERecord?id=CVE-2025-21735 Référence CVE CVE-2025-21736 https://www.cve.org/CVERecord?id=CVE-2025-21736 Référence CVE CVE-2025-21738 https://www.cve.org/CVERecord?id=CVE-2025-21738 Référence CVE CVE-2025-21739 https://www.cve.org/CVERecord?id=CVE-2025-21739 Référence CVE CVE-2025-21741 https://www.cve.org/CVERecord?id=CVE-2025-21741 Référence CVE CVE-2025-21742 https://www.cve.org/CVERecord?id=CVE-2025-21742 Référence CVE CVE-2025-21743 https://www.cve.org/CVERecord?id=CVE-2025-21743 Référence CVE CVE-2025-21744 https://www.cve.org/CVERecord?id=CVE-2025-21744 Référence CVE CVE-2025-21745 https://www.cve.org/CVERecord?id=CVE-2025-21745 Référence CVE CVE-2025-21749 https://www.cve.org/CVERecord?id=CVE-2025-21749 Référence CVE CVE-2025-21750 https://www.cve.org/CVERecord?id=CVE-2025-21750 Référence CVE CVE-2025-21753 https://www.cve.org/CVERecord?id=CVE-2025-21753 Référence CVE CVE-2025-21754 https://www.cve.org/CVERecord?id=CVE-2025-21754 Référence CVE CVE-2025-21755 https://www.cve.org/CVERecord?id=CVE-2025-21755 Référence CVE CVE-2025-21756 https://www.cve.org/CVERecord?id=CVE-2025-21756 Référence CVE CVE-2025-21758 https://www.cve.org/CVERecord?id=CVE-2025-21758 Référence CVE CVE-2025-21759 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-0492Multiples vulnérabilités dans les produits Siemens

CVE-2023-6780, CVE-2023-28531, CVE-2023-38545, CVE-2023-38546, CVE-2023-44487, CVE-2023-46218, CVE-2023-46219, CVE-2023-48795, CVE-2023-51384, CVE-2023-51385, CVE-2023-52927, CVE-2024-2961, CVE-2024-6119, CVE-2024-6387, CVE-2024-12133, CVE-2024-12243, CVE-2024-24855, CVE-2024-26596, CVE-2024-28085, CVE-2024-33599, CVE-2024-33600, CVE-2024-33601, CVE-2024-33602, CVE-2024-34397, CVE-2024-37370, CVE-2024-37371, CVE-2024-45490, CVE-2024-45491, CVE-2024-45492, CVE-2024-50246, CVE-2024-53166, CVE-2024-57977, CVE-2024-57996, CVE-2024-58005, CVE-2025-4373, CVE-2025-4598, CVE-2025-21701, CVE-2025-21702, CVE-2025-21712, CVE-2025-21724, CVE-2025-21728, CVE-2025-21745, CVE-2025-21756, CVE-2025-21758, CVE-2025-21765, CVE-2025-21766, CVE-2025-21767, CVE-2025-21795, CVE-2025-21796, CVE-2025-21848, CVE-2025-21862, CVE-2025-21864, CVE-2025-21865, CVE-2025-26465, CVE-2025-31115 et CVE-2025-46836. Résumé De multiples vulnérabilités ont été découvertes dans les produits Siemens. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, une élévation de privilèges et un déni de service à distance. Solutions Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation). Documentation Bulletin de sécurité Siemens SSA-0825

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-0463Multiples vulnérabilités dans le noyau Linux de Debian LTS

d?id=CVE-2025-21721 Référence CVE CVE-2025-21722 https://www.cve.org/CVERecord?id=CVE-2025-21722 Référence CVE CVE-2025-21726 https://www.cve.org/CVERecord?id=CVE-2025-21726 Référence CVE CVE-2025-21727 https://www.cve.org/CVERecord?id=CVE-2025-21727 Référence CVE CVE-2025-21728 https://www.cve.org/CVERecord?id=CVE-2025-21728 Référence CVE CVE-2025-21731 https://www.cve.org/CVERecord?id=CVE-2025-21731 Référence CVE CVE-2025-21735 https://www.cve.org/CVERecord?id=CVE-2025-21735 Référence CVE CVE-2025-21736 https://www.cve.org/CVERecord?id=CVE-2025-21736 Référence CVE CVE-2025-21744 https://www.cve.org/CVERecord?id=CVE-2025-21744 Référence CVE CVE-2025-21745 https://www.cve.org/CVERecord?id=CVE-2025-21745 Référence CVE CVE-2025-21749 https://www.cve.org/CVERecord?id=CVE-2025-21749 Référence CVE CVE-2025-21753 https://www.cve.org/CVERecord?id=CVE-2025-21753 Référence CVE CVE-2025-21756 https://www.cve.org/CVERecord?id=CVE-2025-21756 Référence CVE CVE-2025-21760 https://www.cve.org/CVERecord?id=CVE-2025-21760 Référence CVE CVE-2025-21761 https://www.cve.org/CVERecord?id=CVE-2025-21761 Référence CVE CVE-2025-21762 https://www.cve.org/CVERecord?id=CVE-2025-21762 Référence CVE CVE-2025-21763 https://www.cve.org/CVERecord?id=CVE-2025-21763 Référence CVE CVE-2025-21764 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-0307Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2025-21734 Référence CVE CVE-2025-21735 https://www.cve.org/CVERecord?id=CVE-2025-21735 Référence CVE CVE-2025-21736 https://www.cve.org/CVERecord?id=CVE-2025-21736 Référence CVE CVE-2025-21738 https://www.cve.org/CVERecord?id=CVE-2025-21738 Référence CVE CVE-2025-21739 https://www.cve.org/CVERecord?id=CVE-2025-21739 Référence CVE CVE-2025-21741 https://www.cve.org/CVERecord?id=CVE-2025-21741 Référence CVE CVE-2025-21742 https://www.cve.org/CVERecord?id=CVE-2025-21742 Référence CVE CVE-2025-21743 https://www.cve.org/CVERecord?id=CVE-2025-21743 Référence CVE CVE-2025-21744 https://www.cve.org/CVERecord?id=CVE-2025-21744 Référence CVE CVE-2025-21745 https://www.cve.org/CVERecord?id=CVE-2025-21745 Référence CVE CVE-2025-21749 https://www.cve.org/CVERecord?id=CVE-2025-21749 Référence CVE CVE-2025-21750 https://www.cve.org/CVERecord?id=CVE-2025-21750 Référence CVE CVE-2025-21753 https://www.cve.org/CVERecord?id=CVE-2025-21753 Référence CVE CVE-2025-21754 https://www.cve.org/CVERecord?id=CVE-2025-21754 Référence CVE CVE-2025-21756 https://www.cve.org/CVERecord?id=CVE-2025-21756 Référence CVE CVE-2025-21759 https://www.cve.org/CVERecord?id=CVE-2025-21759 Référence CVE CVE-2025-21760 https://www.cve.org/CVERecord?id=CVE-2025-21760 Référence CVE CVE-2025-21761 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-0277Multiples vulnérabilités dans le noyau Linux de Debian LTS

d?id=CVE-2025-21726 Référence CVE CVE-2025-21727 https://www.cve.org/CVERecord?id=CVE-2025-21727 Référence CVE CVE-2025-21728 https://www.cve.org/CVERecord?id=CVE-2025-21728 Référence CVE CVE-2025-21731 https://www.cve.org/CVERecord?id=CVE-2025-21731 Référence CVE CVE-2025-21734 https://www.cve.org/CVERecord?id=CVE-2025-21734 Référence CVE CVE-2025-21735 https://www.cve.org/CVERecord?id=CVE-2025-21735 Référence CVE CVE-2025-21736 https://www.cve.org/CVERecord?id=CVE-2025-21736 Référence CVE CVE-2025-21738 https://www.cve.org/CVERecord?id=CVE-2025-21738 Référence CVE CVE-2025-21744 https://www.cve.org/CVERecord?id=CVE-2025-21744 Référence CVE CVE-2025-21745 https://www.cve.org/CVERecord?id=CVE-2025-21745 Référence CVE CVE-2025-21748 https://www.cve.org/CVERecord?id=CVE-2025-21748 Référence CVE CVE-2025-21749 https://www.cve.org/CVERecord?id=CVE-2025-21749 Référence CVE CVE-2025-21750 https://www.cve.org/CVERecord?id=CVE-2025-21750 Référence CVE CVE-2025-21753 https://www.cve.org/CVERecord?id=CVE-2025-21753 Référence CVE CVE-2025-21758 https://www.cve.org/CVERecord?id=CVE-2025-21758 Référence CVE CVE-2025-21760 https://www.cve.org/CVERecord?id=CVE-2025-21760 Référence CVE CVE-2025-21761 https://www.cve.org/CVERecord?id=CVE-2025-21761 Référence CVE CVE-2025-21762 https://www.cve.org/CVERecord?id=

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2025-002052Linux の Linux Kernel における脆弱性

Linux の Linux Kernel には、不特定の脆弱性が存在します。

Official advisory ↗
NCSC-NL · Dutch · NCSC-2025-0187Kwetsbaarheden verholpen in Siemens producten

De kwetsbaarheden stellen een kwaadwillende mogelijk in staat aanvallen uit te voeren die kunnen leiden tot de volgende categorieën schade: - Denial-of-Service (DoS) - Manipulatie van gegevens - Omzeilen van een beveiligingsmaatregel - Omzeilen van authenticatie - (Remote) code execution (root/admin rechten) - (Remote) code execution (Gebruikersrechten) - Toegang tot systeemgegevens - Toegang tot gevoelige gegevens - Spoofing De kwaadwillende heeft hiervoor toegang nodig tot de productieomgeving. Het is goed gebruik een dergelijke omgeving niet publiek toegankelijk te hebben.

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.
Patch available
Affected
Fixed
Linux: < 5.9, 5.10.235 ≤ 5.10.*, 5.15.179 ≤ 5.15.*, 6.1.129 ≤ 6.1.*, 6.6.78 ≤ 6.6.*, 6.12.14 ≤ 6.12.*, 6.13.3 ≤ 6.13.*, 6.14 ≤ *
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.
04

Evidence and provenance

Published 27 Feb 2025 · Last source change 8 Sept 2026, 08:40 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-2025-5179
Product sourceVendor CSAF · Siemens ProductCERT
Remediation sourceVendor CSAF · Siemens ProductCERT
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 ↗

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

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2025-5179↗Vendor CSAF · Siemens ProductCERT↗Patch or update reference↗Patch or update reference↗Patch or update reference↗Patch or update reference↗CVE authority or vendor 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-2025-21745 · cve.blacktree.nl