CVE-1999-0399: Khaled Mardam-Bey Mirc

High severity, CVSS 7.5. EPSS: 2.7% chance of exploitation in the next 30 days.

The DCC server command in the Mirc 5.5 client doesn't filter characters from file names properly, allowing remote attackers to place a malicious file in a different location, possibly allowing the attacker to execute commands.

Affected products

• Khaled Mardam-Bey Mirc: version 5.5 only

Published 1999-01-01. Last modified 2026-06-16.