CVE-2001-0060: Stunnel

High severity, CVSS 10.0. EPSS: 2.8% chance of exploitation in the next 30 days.

Format string vulnerability in stunnel 3.8 and earlier allows attackers to execute arbitrary commands via a malformed ident username.

Affected products

• Stunnel Stunnel: version 3.3 only; version 3.4a only; version 3.7 only; version 3.8 only

Published 2001-02-12. Last modified 2026-06-16.