CVE-2003-0978: GNU Privacy Guard

High severity, CVSS 7.5. EPSS: 2.8% chance of exploitation in the next 30 days.

Format string vulnerability in gpgkeys_hkp (experimental HKP interface) for the GnuPG (gpg) client 1.2.3 and earlier, and 1.3.3 and earlier, allows remote attackers or a malicious keyserver to cause a denial of service (crash) and possibly execute arbitrary code during key retrieval.

Affected products

• GNU Privacy Guard: version 1.2 only; version 1.2.1 only; version 1.2.2 only; version 1.2.3 only; version 1.3.3 only

Published 2004-01-05. Last modified 2026-06-16.