Vulnerability in Linux

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().

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (4.0th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 4.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-39971: held from 0.001 to 0.002.

EPSS over last 30 days · oldest: 0.001 · newest: 0.002 · change: +0.000

Affected products

  • Linux — versions c27eac48160de72dee33d42b5a33cc7b8a2eb1f5, 4.17, 0

References

Frequently asked questions

What is CVE-2025-39971?
CVE-2025-39971 is a high-severity vulnerability in Linux. CVSS score: 8.8/10. Published 2025-10-15.
How severe is CVE-2025-39971?
High severity. CVSS v3 base score is 8.8 out of 10.