Out-of-bounds Read in Linux

CVE-2025-37973

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: fix out-of-bounds access during multi-link element defragmentation Currently during the multi-link element defragmentation process, the multi-link element length added to the total IEs length when calculating the length of remaining IEs after the multi-link element in cfg80211_defrag_mle(). This could lead to out-of-bounds access if the multi-link element or its corresponding fragment elements are the last elements in the IEs buffer. To address this issue, correctly calculate the remaining IEs length by deducting the multi-link element end offset from total IEs end offset.

Vulnerability class: Buffer Overflow

Published · last modified .

CVSS v3 metric

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

EPSS exploit prediction

EPSS: 0.002 (12.1th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 12th percentile — 12.1% 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-2025-37973: held from 0.003 to 0.002.

EPSS over last 30 days · oldest: 0.003 · newest: 0.002 · change: -0.000

Affected products

  • Linux — versions 2481b5da9c6b2ee1fde55a1c29eb2ca377145a10, 6.5, 0
  • Linux Kernel — versions 6.15

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-37973?
CVE-2025-37973 is a high-severity vulnerability in Linux, classified under Out-of-bounds Read. CVSS score: 8.1/10. Published 2025-05-20.
How severe is CVE-2025-37973?
High severity. CVSS v3 base score is 8.1 out of 10.