Vulnerability in Linux

CVE-2026-53257

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: enforce HE/EHT cap/oper consistency Xiang Mei reports that mac80211 could crash if eht_cap is set but eht_oper isn't. Rather than fixing that for the individual user(s), enforce that both HE/EHT have consistent elements.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.001 (0.8th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 0.8% 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-2026-53257: held from 0.001 to 0.001.

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

Affected products

  • Linux — versions 22c64f37e1d4e757b0073a72f1439c2c3509c5cb, 6.16, 0
  • Linux Kernel — versions 7.1

References

Frequently asked questions

What is CVE-2026-53257?
CVE-2026-53257 is a medium-severity vulnerability in Linux. CVSS score: 5.5/10. Published 2026-06-25.
How severe is CVE-2026-53257?
Medium severity. CVSS v3 base score is 5.5 out of 10.