CVE-2002-1563: Stunnel

Low severity, CVSS 1.2. EPSS: 0.3% chance of exploitation in the next 30 days.

stunnel 4.0.3 and earlier allows attackers to cause a denial of service (crash) via SIGCHLD signal handler race conditions that cause an inconsistency in the child counter.

Affected products

• Stunnel Stunnel: version 4.04 only

Published 2003-05-12. Last modified 2026-06-16.