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CVE-2025-71239

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: audit: add fchmodat2() to change attributes class fchmodat2(), introduced in version 6.6 is currently not in the change attribu…

Published Mar 17, 2026EPSS 0.13%

Overview

CVE-2025-71239 is a medium-severity vulnerability. It was published on March 17, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

audit: add fchmodat2() to change attributes class

fchmodat2(), introduced in version 6.6 is currently not in the change

attribute class of audit. Calling fchmodat2() to change a file

attribute in the same fashion than chmod() or fchmodat() will bypass

audit rules such as:

-w /tmp/test -p rwa -k test_rwa

The current patch adds fchmodat2() to the change attributes class.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/3e762a03713e8c25ca0108c075d662c897fc0623Refgit.kernel.org/stable/c/4f493a6079b588cf1f04ce5ed6cdad45ab0d53dcRefgit.kernel.org/stable/c/4fed776ca86378da7dd743a7b648e20b025ba8efRefgit.kernel.org/stable/c/91e27bc79c3bca93c06bf5a471d47df9a35b3741Refgit.kernel.org/stable/c/c4334c0d0e7d6f02ed93756fd4ba807e3d00c05fRefwww.bencteux.fr/posts/missing_syscalls_audit/

How CyberStrike helps

Frequently asked questions

What is CVE-2025-71239?

CVE-2025-71239 is a medium-severity vulnerability. It was published on March 17, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2025-71239?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2025-71239?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2025-71239?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-71239 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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