CVE-2003-1325: Valve Software Half-Life Cstrike Dedicated Server

Medium severity, CVSS 5.2. EPSS: 2.6% chance of exploitation in the next 30 days.

The SV_CheckForDuplicateNames function in Valve Software Half-Life CSTRIKE Dedicated Server 1.1.1.0 and earlier allows remote authenticated users to cause a denial of service (infinite loop and daemon hang) via a certain connection string to UDP port 27015 that represents "absence of player informations," a related issue to CVE-2006-0734.

Affected products

• Valve Software Half-Life Cstrike Dedicated Server: up to and including 1.1.1.0

Published 2003-12-31. Last modified 2026-06-16.