CVE-2003-1377: Sircd

High severity, CVSS 8.3. EPSS: 2.9% chance of exploitation in the next 30 days.

Buffer overflow in the reverse DNS lookup of Smart IRC Daemon (SIRCD) 0.4.0 and 0.4.4 allows remote attackers to execute arbitrary code via a client with a long hostname.

Affected products

• Sircd Sircd: version 0.4.0 only; version 0.4.4 only

Published 2003-12-31. Last modified 2026-06-16.