CVE-2001-1488: Open Projects Network Ircd

Medium severity, CVSS 5.0. EPSS: 1.3% chance of exploitation in the next 30 days.

Open Projects Network Internet Relay Chat (IRC) daemon u2.10.05.18 does not perform a double-reverse DNS lookup, which allows remote attackers to spoof any valid hostname on the Internet. NOTE: a followup post suggests that this is not an issue in the daemon.

Affected products

Published 2001-12-31. Last modified 2026-06-16.