CVE-2025-68973: Gnupg

High severity, CVSS 7.0. EPSS: 0.2% chance of exploitation in the next 30 days.

In GnuPG before 2.4.9, armor_filter in g10/armor.c has two increments of an index variable where one is intended, leading to an out-of-bounds write for crafted input. (For ExtendedLTS, 2.2.51 and later are fixed versions.)

Affected products

• Gnupg Gnupg: up to and including 2.4.8

Published 2025-12-28. Last modified 2026-06-17.