CVE-2018-6952: GNU Patch

High severity, CVSS 7.5. EPSS: 8.2% chance of exploitation in the next 30 days.

A double free exists in the another_hunk function in pch.c in GNU patch through 2.7.6.

Affected products

• GNU Patch: up to and including 2.7.6

Published 2018-02-13. Last modified 2026-06-17.