CVE-2002-0231: Khaled Mardam-Bey Mirc

High severity, CVSS 7.5. EPSS: 9.6% chance of exploitation in the next 30 days.

Buffer overflow in mIRC 5.91 and earlier allows a remote server to execute arbitrary code on the client via a long nickname.

Affected products

• Khaled Mardam-Bey Mirc: version 2.1a only; version 2.3a only; version 2.4 only; version 2.4a only; version 2.5a only; version 2.7a only; …

Published 2002-05-16. Last modified 2026-06-16.