{"cve":{"cve_id":"CVE-2002-0964","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.03155,"epss_percentile":0.86293,"epss_as_of":"2026-06-23","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.","published_at":"2003-04-02T05:00:00Z","last_modified_at":"2026-06-16T21:58:28.330000Z","cvss_v3_score":null,"cvss_v3_vector":null,"cvss_v3_severity":null,"cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":null,"nvd_references":["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"],"vuln_status":"Modified","trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:39.878444Z","updated_at":"2026-06-28T23:02:23.718481Z"},"effective_severity":null,"badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":null,"metrics":[]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"valve-software","vendor_name":"Valve Software","product_slug":"half-life","product_name":"half-life","version_start":"1.1.0.4","version_start_inclusive":true,"version_end":"1.1.0.4","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:valve_software:half-life:1.1.0.4:*:linux:*:*:*:*:*"},{"vendor_slug":"valve-software","vendor_name":"Valve Software","product_slug":"half-life","product_name":"half-life","version_start":"1.1.0.4","version_start_inclusive":true,"version_end":"1.1.0.4","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:valve_software:half-life:1.1.0.4:*:windows:*:*:*:*:*"},{"vendor_slug":"valve-software","vendor_name":"Valve Software","product_slug":"half-life","product_name":"half-life","version_start":"1.1.0.8","version_start_inclusive":true,"version_end":"1.1.0.8","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:valve_software:half-life:1.1.0.8:*:*:*:*:*:*:*"},{"vendor_slug":"valve-software","vendor_name":"Valve Software","product_slug":"half-life","product_name":"half-life","version_start":"1.1.0.9","version_start_inclusive":true,"version_end":"1.1.0.9","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:valve_software:half-life:1.1.0.9:*:*:*:*:*:*:*"},{"vendor_slug":"valve-software","vendor_name":"Valve Software","product_slug":"half-life","product_name":"half-life","version_start":"1.1.1.0","version_start_inclusive":true,"version_end":"1.1.1.0","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:valve_software:half-life:1.1.1.0:*:*:*:*:*:*:*"},{"vendor_slug":"valve-software","vendor_name":"Valve Software","product_slug":"half-life-dedicated-server","product_name":"half-life_dedicated_server","version_start":null,"version_start_inclusive":null,"version_end":"3.1","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:valve_software:half-life_dedicated_server:*:*:*:*:*:*:*:*"},{"vendor_slug":"valve-software","vendor_name":"Valve Software","product_slug":"half-life-dedicated-server","product_name":"half-life_dedicated_server","version_start":"3.1.3","version_start_inclusive":true,"version_end":"3.1.3","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:valve_software:half-life_dedicated_server:3.1.3:*:*:*:*:*:*:*"}],"exploit_refs":[],"news":[],"references":[{"url":"http://www.iss.net/security_center/static/9412.php","source_type":"MISC","tags":[]},{"url":"http://www.securityfocus.com/bid/5076","source_type":"MISC","tags":[]},{"url":"http://archives.neohapsis.com/archives/bugtraq/2002-06/0248.html","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2003-04-02T05:00:00Z","label":"CVE published","source":null}]}