Vulnerability in Linux

CVE-2025-40075

In the Linux kernel, the following vulnerability has been resolved: tcp_metrics: use dst_dev_net_rcu() Replace three dst_dev() with a lockdep enabled helper.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (32.6th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 32.6% 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-2025-40075: held from 0.004 to 0.004.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000

Affected products

  • Linux — versions 4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36, 4.13, 0

References

Frequently asked questions

What is CVE-2025-40075?
CVE-2025-40075 is a high-severity vulnerability in Linux. CVSS score: 8.1/10. Published 2025-10-28.
How severe is CVE-2025-40075?
High severity. CVSS v3 base score is 8.1 out of 10.