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Vulnerability Score 4.3 4.3
CVE Id CVE-2003-1433
Last Modified 05 Sep 2008 04:36:55
Published 31 Dec 2003 12:00:00
Confidentiality Impact NONE NONE
Integrity Impact NONE NONE
Availability Impact PARTIAL PARTIAL
Access Vector NETWORK
Access Complexity MEDIUM
Authentication NONE



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.

Vulnerable Systems


  • Epic Games Unreal Engine 226f

  • Epic Games Unreal Engine 433

  • Epic Games Unreal Engine 436


XF - ut-join-request-dos(11304)

BID - 6771

BUGTRAQ - 20030211 Re: Epic Games threatens to sue security researchers

BUGTRAQ - 20030205 Unreal engine: results of my research

Last Updated: 27 May 2016 10:38:22