Out-of-bounds Read in Util-Linux

CVE-2025-14104

A flaw was found in util-linux. This vulnerability allows a heap buffer overread when processing 256-byte usernames, specifically within the `setpwnam()` function, affecting SUID (Set User ID) login-utils utilities writing to the password database.

Vulnerability class: Buffer Overflow

EPSS: 0.002 (8.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-14104?
CVE-2025-14104 is a medium-severity vulnerability in Util-Linux, classified under Out-of-bounds Read. CVSS score: 6.1/10. Published 2025-12-05.
How severe is CVE-2025-14104?
Medium severity. CVSS v3 base score is 6.1 out of 10.