CVE-2025-39971
In the Linux kernel, the following vulnerability has been resolved: i40e: fix idx validation in config queues msg Ensure idx is within range of active/initialized TCs when iterating over vf->ch[idx] in i40e_vc_config_queues_msg().
Affected versions
Linux kernel versions
4.17
and later are affected. Fixed in
5.4.300,
5.10.245,
5.15.194,
6.1.155,
6.6.109,
6.12.50,
6.16.10,
6.17
and their respective stable series.
References
The following references provide additional information about CVE-2025-39971 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
-
PatchKernel patch commithttps://git.kernel.org/stable/c/1fa0aadade34481c567cdf4a897c0d4e4d548bd1
-
PatchKernel patch commithttps://git.kernel.org/stable/c/2cc26dac0518d2fa9b67ec813ee60e183480f98a
-
PatchKernel patch commithttps://git.kernel.org/stable/c/5c1f96123113e0bdc6d8dc2b0830184c93da9f65
Frequently asked questions
-
What is CVE-2025-39971?
CVE-2025-39971 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 4.17 onward and has been patched in 5.4.300, 5.10.245, 5.15.194 and others. CVE-2025-39971 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
-
Is there a patch available for CVE-2025-39971?
Yes — CVE-2025-39971 has been patched. Fixed versions include 5.4.300, 5.10.245, 5.15.194 and others. If you are running Linux kernel 4.17 or later up to the fix versions, apply the relevant patch for your kernel branch.
-
Is CVE-2025-39971 actively exploited?
No — CVE-2025-39971 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.