CVE-2025-15281

CVE-2025-15281: wordexp with WRDE_REUSE and WRDE_APPEND may return uninitialized memory

Vendor The Gnu C Library

Product glibc

Weakness CWE-908

Published January 20, 2026

Last update January 22, 2026

View on NVD All CVEs

CVSS base score

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What the vulnerability does

01Description

Calling wordexp with WRDE_REUSE in conjunction with WRDE_APPEND in the GNU C Library version 2.0 to version 2.42 may cause the interface to return uninitialized memory in the we_wordv member, which on subsequent calls to wordfree may abort the process.

Key dates

02Disclosure timeline

January 20, 2026 CVE published

January 22, 2026 Record updated

External resources

03References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2025-15281 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/908.html