CVE-2025-8058

GNU C Library <2.42 - Use After Free

Title source: llm

Description

The regcomp function in the GNU C library version from 2.4 to 2.41 is subject to a double free if some previous allocation fails. It can be accomplished either by a malloc failure or by using an interposed malloc that injects random malloc failures. The double free can allow buffer manipulation depending of how the regex is constructed. This issue affects all architectures and ABIs supported by the GNU C library.

Scores

EPSS 0.0001
EPSS Percentile 0.5%

Classification

CWE
CWE-415
Status draft

Timeline

Published Jul 23, 2025
Tracked Since Feb 18, 2026