CVE-2026-80591

HIGHCVSS 7.8/10EPSS 0.18%

Last modified

CVE-2026-80591 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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.. EPSS estimates a 0.18% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability
0.18%

7.2th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 688078e7f36c293dae25b338ddc9e0a2790f6e06, < 7dfac47e4189692f35230f3064acf2540e6d75fe; >= 688078e7f36c293dae25b338ddc9e0a2790f6e06, < c8a10f174316e80d577e6549099b71a7a2111f3f; >= 688078e7f36c293dae25b338ddc9e0a2790f6e06, < dfa4891c27bccbd83d511a065721e85621f275a1; >= 688078e7f36c293dae25b338ddc9e0a2790f6e06, < 2770041f34b52334ea63351ffb1cc2007a9de46e; >= 688078e7f36c293dae25b338ddc9e0a2790f6e06, < 7dd01f7d0291583e3e5420c95c7d584e114899bd; >= 688078e7f36c293dae25b338ddc9e0a2790f6e06, < ec9f79c8d5b28a928e65b67cd138c841571cf502; >= 688078e7f36c293dae25b338ddc9e0a2790f6e06, < 3c0dbfecd859fd02fe9008f33a83146102ccd9ba; >= 688078e7f36c293dae25b338ddc9e0a2790f6e06, < 5ef5bc304f23c3fe255d4936472378dcb74d0e94; ae811cecbbb231f11a84acaf74baca1283b964c7; ed523cbd4a6594edf123dc03ec9d70ea4f793671; 5811f24abd27a8a0791c6909c6ff803659060c84; >= 4.14.181, < 4.15; >= 4.19.119, < 4.20; >= 5.4.36, < 5.5
LinuxLinux5.5

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is 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.
How severe is CVE-2026-80591?
CVE-2026-80591 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.18% probability of exploitation in the next 30 days.
How do I fix CVE-2026-80591?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST