Vulnerability record · CVE-2004-1805 · published 31 December 2004

CVE-2004-1805: Epic games unreal engine vulnerability

Epic Games · Unreal Engine

Format string vulnerability in games using the Epic Games Unreal Engine 436 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via format string specifiers in class names.

5.0 CVSS 2.0 Medium EPSS 6.4% · top 6.5%

5.0CVSS 2.0 base score

6.4%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

12References, 4 tagged exploit

16 Jun 2026Last modified by NVD

Description

AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Unreal Engine Epic Games

References

Link	Tags
http://aluigi.altervista.org/adv/unrfs-adv.txt	Exploit
http://marc.info/?l=bugtraq&m=107893764406905&w=2
http://marc.info/?l=bugtraq&m=107902755204583&w=2
http://secunia.com/advisories/11108
http://www.securityfocus.com/bid/9840	ExploitPatch
https://exchange.xforce.ibmcloud.com/vulnerabilities/15430
http://aluigi.altervista.org/adv/unrfs-adv.txt	Exploit
http://marc.info/?l=bugtraq&m=107893764406905&w=2
http://marc.info/?l=bugtraq&m=107902755204583&w=2
http://secunia.com/advisories/11108
http://www.securityfocus.com/bid/9840	ExploitPatch
https://exchange.xforce.ibmcloud.com/vulnerabilities/15430

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2004-0608Unreal Engine UDP secure query buffer overflow allows remote code executionThe Unreal Engine, as used in numerous games including DeusEx, Unreal Tournament, Unreal Tournament 2003/2004, Postal 2, Rune, and others, mishandles…EPSS 74%analysed6 Dec 2004 10.0CVE-2003-1432Epic games unreal engine code injection vulnerabilityEpic Games Unreal Engine 226f through 436 allows remote attackers to cause a denial of service (CPU consumption or crash) and possibly execute arbitr…EPSS 7.5%31 Dec 2003 7.1CVE-2003-1431Epic games unreal engine memory buffer overflow vulnerabilityBuffer 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 t…EPSS 5.2%31 Dec 2003 5.0CVE-2007-4442Epic games unreal engine vulnerabilityStack-based buffer overflow in the logging function in the Unreal engine, possibly 2003 and 2004, as used in the internal web server, allows remote a…EPSS 3.8%21 Aug 2007 5.0CVE-2007-4443Epic games unreal engine vulnerabilityThe UCC dedicated server for the Unreal engine, possibly 2003 and 2004, on Windows allows remote attackers to cause a denial of service (continuous b…EPSS 1.7%21 Aug 2007 5.0CVE-2004-1958Epic games unreal engine vulnerabilityDirectory traversal vulnerability in manifest.ini in Unreal engine allows remote attackers to overwrite arbitrary files via .. (dot dot) sequences in…EPSS 2.4%31 Dec 2004 5.0CVE-2003-1430Epic games unreal engine path traversal vulnerabilityDirectory traversal vulnerability in Unreal Tournament Server 436 and earlier allows remote attackers to access known files via a ".." (dot dot) in a…EPSS 2.8%31 Dec 2003 4.3CVE-2003-1433Epic games unreal engine improper authentication vulnerabilityEpic Games Unreal Engine 226f through 436 does not validate the challenge key, which allows remote attackers to exhaust the player limit by joining t…EPSS 1.2%31 Dec 2003

Source: NIST National Vulnerability Database (record CVE-2004-1805), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.