CVE-2003-1431

NONECVSS 0.0Weaponized

0.0

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.

CVSS v3: —
EG Score: —
EPSS: 88.6%
KEV: Not listed

Published

December 31, 2003

Last Modified

April 16, 2026

References (10)

cve@mitrehttp://archives.neohapsis.com/archives/bugtraq/2003-02/0063.html
cve@mitrehttp://archives.neohapsis.com/archives/bugtraq/2003-02/0142.html
cve@mitrehttp://www.pivx.com/luigi/adv/ueng-adv.txt
cve@mitrehttp://www.securityfocus.com/bid/6774
cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/11301
af854a3a-2127-422b-91ae-364da2661108http://archives.neohapsis.com/archives/bugtraq/2003-02/0063.html
af854a3a-2127-422b-91ae-364da2661108http://archives.neohapsis.com/archives/bugtraq/2003-02/0142.html
af854a3a-2127-422b-91ae-364da2661108http://www.pivx.com/luigi/adv/ueng-adv.txt
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/6774
af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/11301

Data Freshness Timeline

(refreshed 11× in last 7d / 16× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-29 13:40 UTCepss_batch
2026-05-29 13:40 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-27 13:37 UTCepss_batch
2026-05-26 13:41 UTCepss_batch
2026-05-26 13:41 UTCepss_batch
2026-05-26 07:16 UTCepss_batch
2026-05-26 07:16 UTCepss_batch
2026-05-24 16:42 UTCepss_batch
2026-05-20 22:36 UTCepss_batch
2026-05-20 11:20 UTCepss_batch
2026-05-20 11:20 UTCepss_batch
2026-05-18 21:29 UTCepss_batch
2026-05-18 21:29 UTCepss_batch

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

Exploit-DBEDB-22223✓ verified
First seen Feb 5, 2003
Epic Games Unreal Engine 436 - Client Unreal URL Denial of Service
Open source ↗

Frequently asked(4)

What is CVE-2003-1431?

CVE-2003-1431 is a none vulnerability published on December 31, 2003. 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.

When was CVE-2003-1431 disclosed?

CVE-2003-1431 was first published in the National Vulnerability Database on December 31, 2003, with the most recent update on April 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2003-1431 actively exploited?

CVE-2003-1431 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 88.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

How do I remediate CVE-2003-1431?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2003-1431, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2003-1431

📅 Published

🔄 Last Modified

🔗 References (10)