CVE-2000-0857: Sebastian Kienzl Muh

High severity, CVSS 7.5. EPSS: 2.4% chance of exploitation in the next 30 days.

The logging capability in muh 2.05d IRC server does not properly cleanse user-injected format strings, which allows remote attackers to cause a denial of service or execute arbitrary commands via a malformed nickname.

Affected products

Published 2000-11-14. Last modified 2026-06-16.