{"cve":"CVE-2002-0964","nvd":{"published":"2002-10-04T04:00:00.000","modified":"2026-06-16T21:58:28.330","status":"Modified","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.","cvss_v4":null,"cvss_v3":null,"cwes":[],"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"],"products":["valve_software:half-life","valve_software:half-life_dedicated_server"],"source":"nvd","synced_at":"2026-10-19T19:34:38.930894741+00:00"},"epss":{"cve":"CVE-2002-0964","score":0.03155,"percentile":0.87968,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}