{"id":"CVE-2003-1433","aliases":["EUVD-2003-1423","GHSA-q959-v446-rf26"],"status":"published","title":"Epic Games Unreal Engine 226f through 436 does not validate the challenge key, which allows...","description":"Epic Games Unreal Engine 226f through 436 does not validate the challenge key, which allows remote attackers to exhaust the player limit by joining the game multiple times.","severity":{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.01179,"percentile":0.67852,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287"],"published":"2003-12-31T05:00:00Z","modified":"2026-06-16T22:04:25Z","products":[{"vendor":"epic_games","product":"unreal_engine"}],"references":[{"url":"http://www.securityfocus.com/bid/6771","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://www.pivx.com/luigi/adv/ueng-adv.txt","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/11304","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://archives.neohapsis.com/archives/bugtraq/2003-02/0063.html","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"http://archives.neohapsis.com/archives/bugtraq/2003-02/0142.html","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2003-1433"},{"url":"https://github.com/advisories/GHSA-q959-v446-rf26"}],"sources":{"cve":[{"id":"CVE-2003-1433","description":"Epic Games Unreal Engine 226f through 436 does not validate the challenge key, which allows remote attackers to exhaust the player limit by joining the game multiple times.","status":"published","published":"2007-10-23T01:00:00Z","modified":"2024-08-08T02:28:03.574Z","updated_at":"2026-11-02T14:20:16.072351Z"}],"euvd":[{"id":"EUVD-2003-1423","description":"Epic Games Unreal Engine 226f through 436 does not validate the challenge key, which allows remote attackers to exhaust the player limit by joining the game multiple times.","status":"published","published":"2007-10-23T01:00:00Z","modified":"2024-08-08T02:28:03Z","updated_at":"2026-11-03T01:15:03.384433Z"}],"ghsa":[{"id":"GHSA-q959-v446-rf26","title":"Epic Games Unreal Engine 226f through 436 does not validate the challenge key, which allows...","description":"Epic Games Unreal Engine 226f through 436 does not validate the challenge key, which allows remote attackers to exhaust the player limit by joining the game multiple times.","status":"published","published":"2022-04-29T01:28:04Z","modified":"2023-01-30T05:02:19Z","cwes":["CWE-287"],"updated_at":"2026-11-02T14:46:36.658869Z"}],"nvd":[{"id":"CVE-2003-1433","description":"Epic Games Unreal Engine 226f through 436 does not validate the challenge key, which allows remote attackers to exhaust the player limit by joining the game multiple times.","status":"published","published":"2003-12-31T05:00:00Z","modified":"2026-06-16T22:04:25.7Z","cvss":[{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:00:48.212104Z"}]}}