CVE-2003-1431

CVE-2003-1431 is a high-severity vulnerability in Epic Games Unreal Engine with a CVSS 2.0 base score of 7.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

Description

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.

Frequently asked questions

What is CVE-2003-1431?
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.
How severe is CVE-2003-1431?
CVE-2003-1431 has a CVSS 2.0 base score of 7.1, rated high severity.
Is CVE-2003-1431 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2003-1431?
CVE-2003-1431 primarily affects Epic Games Unreal Engine. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2003-1431?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2003-1431 published?
CVE-2003-1431 was published on 2003-12-31 and last updated on 2026-06-16.

References

Affected products (3)

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