{"cve":"CVE-2003-1433","nvd":{"published":"2003-12-31T05:00:00.000","modified":"2026-06-16T22:04:25.700","status":"Modified","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.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-287"],"references":["http://archives.neohapsis.com/archives/bugtraq/2003-02/0063.html","http://archives.neohapsis.com/archives/bugtraq/2003-02/0142.html","http://www.pivx.com/luigi/adv/ueng-adv.txt","http://www.securityfocus.com/bid/6771","https://exchange.xforce.ibmcloud.com/vulnerabilities/11304"],"products":["epic_games:unreal_engine"],"source":"nvd","synced_at":"2026-10-19T19:35:54.859949650+00:00"},"epss":{"cve":"CVE-2003-1433","score":0.01179,"percentile":0.67675,"date":"2026-10-31"},"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."]}