CVE-2003-1433

NONECVSS 0.0

0.0

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 v3: —
EG Score: —
EPSS: 70.4%
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/6771
cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/11304
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/6771
af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/11304

Data Freshness Timeline

(refreshed 12× in last 7d / 17× 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
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2026-05-26 07:16 UTCepss_batch
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2026-05-24 16:42 UTCepss_batch
2026-05-22 21:15 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

Frequently asked(4)

What is CVE-2003-1433?

CVE-2003-1433 is a none vulnerability published on December 31, 2003. 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.

When was CVE-2003-1433 disclosed?

CVE-2003-1433 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-2003-1433 actively exploited?

CVE-2003-1433 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 70.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

How do I remediate CVE-2003-1433?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2003-1433, 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.

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CVE-2003-1433

📅 Published

🔄 Last Modified

🔗 References (10)