CVE-2025-71239
CVE-2025-71239 is a medium-severity vulnerability in Linux Linux Kernel with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: Medium (CVSS 3.x base score 5.5)
- EPSS exploit prediction: 0% (3rd percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-208776
- Affected product: Linux Linux Kernel
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2025-71239?
- 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.
- How severe is CVE-2025-71239?
- CVE-2025-71239 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2025-71239 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2025-71239?
- CVE-2025-71239 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2025-71239?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2025-71239 have an EU (EUVD) identifier?
- Yes. CVE-2025-71239 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-208776.
- When was CVE-2025-71239 published?
- CVE-2025-71239 was published on 2026-03-17 and last updated on 2026-06-17.
References
- https://git.kernel.org/stable/c/3e762a03713e8c25ca0108c075d662c897fc0623
- https://git.kernel.org/stable/c/4f493a6079b588cf1f04ce5ed6cdad45ab0d53dc
- https://git.kernel.org/stable/c/4fed776ca86378da7dd743a7b648e20b025ba8ef
- https://git.kernel.org/stable/c/91e27bc79c3bca93c06bf5a471d47df9a35b3741
- https://git.kernel.org/stable/c/c4334c0d0e7d6f02ed93756fd4ba807e3d00c05f
- https://www.bencteux.fr/posts/missing_syscalls_audit/
Affected products (1)
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
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