CVE-2003-1431: Epic Games Unreal Engine

High severity, CVSS 7.1. EPSS: 5.2% chance of exploitation in the next 30 days.

Buffer overflow in Epic Games Unreal Engine 226f through 436 allows remote attackers to cause a denial of service (crash) via a long host string in the Unreal URL.

Affected products

• Epic Games Unreal Engine: version 226f only; version 433 only; version 436 only

Published 2003-12-31. Last modified 2026-06-16.