CVE-2002-0770: Id Software Quake 2i Server

Medium severity, CVSS 5.0. EPSS: 5.5% chance of exploitation in the next 30 days.

Quake 2 (Q2) server 3.20 and 3.21 allows remote attackers to obtain sensitive server cvar variables, obtain directory listings, and execute Q2 server admin commands via a client that does not expand "$" macros, which causes the server to expand the macros and leak the information, as demonstrated using "say $rcon_password."

Affected products

• Id Software Quake 2i Server: version 3.20 only; version 3.21 only

Published 2002-08-12. Last modified 2026-06-16.