What’s Vulnerable › Vulnerabilities
CVE-2002-0964
- Severity: medium (CVSS 5.0 v2.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 3.2% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2002-10-04 · updated 2026-06-16
Description
Half-Life Server 1.1.1.0 and earlier allows remote attackers to cause a denial of service (resource exhaustion) via multiple responses to the initial challenge with different cd_key values, which reaches the player limit and prevents other players from connecting until the original responses have timed out.
Affected products
- Valve Software Half-Life: 1.1.0.4, 1.1.0.8, 1.1.0.9, 1.1.1.0
- Valve Software Half-Life Dedicated Server: through 3.1; 3.1.3
References
- http://archives.neohapsis.com/archives/bugtraq/2002-06/0248.html
- http://www.iss.net/security_center/static/9412.php
- http://www.securityfocus.com/bid/5076
- http://archives.neohapsis.com/archives/bugtraq/2002-06/0248.html
- http://www.iss.net/security_center/static/9412.php
- http://www.securityfocus.com/bid/5076
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