VULNERABILITY INTELLIGENCE

CVE-2025-30258

CVSS score4.7 MEDIUM

EPSS probability0.19%

CISA KEVNot currently listed

Published2025-03-19

Last modified2026-06-17

Description

In GnuPG before 2.5.5, if a user chooses to import a certificate with certain crafted subkey data that lacks a valid backsig or that has incorrect usage flags, the user loses the ability to verify signatures made from certain other signing keys, aka a "verification DoS."