Vulnerability in Linux

CVE-2026-80591

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix listxattr handling of corrupted xattr entries Validate the xattr entry before reading its fields in f2fs_listxattr(). Return -EFSCORRUPTED when the entry is outside the valid xattr storage area instead of returning a successful partial result.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (6.6th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 6.6% 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-2026-80591: 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 5.5, 5811f24abd27a8a0791c6909c6ff803659060c84, ae811cecbbb231f11a84acaf74baca1283b964c7

References

Frequently asked questions

What is CVE-2026-80591?
CVE-2026-80591 is a high-severity vulnerability in Linux. CVSS score: 7.8/10. Published 2026-08-28.
How severe is CVE-2026-80591?
High severity. CVSS v3 base score is 7.8 out of 10.