CVE-2000-0678: Pgp

Medium severity, CVSS 5.0. EPSS: 1.5% chance of exploitation in the next 30 days.

PGP 5.5.x through 6.5.3 does not properly check if an Additional Decryption Key (ADK) is stored in the signed portion of a public certificate, which allows an attacker who can modify a victim's public certificate to decrypt any data that has been encrypted with the modified certificate.

Affected products

• Pgp Pgp: version 5.5.3i only; version 6.5.1i only; version 6.5.3i only

Published 2000-10-20. Last modified 2026-06-16.