CVE-2008-4449: Mirc

High severity, CVSS 9.3. EPSS: 38.7% chance of exploitation in the next 30 days.

Stack-based buffer overflow in mIRC 6.34 allows remote attackers to execute arbitrary code via a long hostname in a PRIVMSG message.

Affected products

• Mirc Mirc: version 6.34 only

Published 2008-10-06. Last modified 2026-06-16.