CVE-2001-1016: Pgp Corporate Desktop

High severity, CVSS 7.5. EPSS: 1.4% chance of exploitation in the next 30 days.

PGP Corporate Desktop before 7.1, Personal Security before 7.0.3, Freeware before 7.0.3, and E-Business Server before 7.1 does not properly display when invalid userID's are used to sign a message, which could allow an attacker to make the user believe that the document has been signed by a trusted third party by adding a second, invalid user ID to a key which has already been signed by the third party, aka the "PGPsdk Key Validity Vulnerability."

Affected products

• Pgp Corporate Desktop: version 7.1 only
• Pgp E-Business Server: version 6.5.8 only; version 7.0.4 only; version 7.1 only
• Pgp Freeware: version 7.0.3 only
• Pgp Personal Security: version 7.0.3 only
• Pgp Pgp: version 5.0 only; version 6.0.2 only

Published 2001-09-04. Last modified 2026-06-16.