How severe is CVE-2003-1432?

CVE-2003-1432 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2003-1432 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2003-1432?

CVE-2003-1432 primarily affects Epic Games Unreal Engine. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2003-1432?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2003-1432 published?

CVE-2003-1432 was published on 2003-12-31 and last updated on 2026-06-16.

CVE-2003-1432

CVE-2003-1432 is a critical-severity vulnerability in Epic Games Unreal Engine with a CVSS 2.0 base score of 10.0. 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-94.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 8% (94th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Epic Games Unreal Engine
Published: 2003-12-31
Last modified: 2026-06-16

Description

Epic Games Unreal Engine 226f through 436 allows remote attackers to cause a denial of service (CPU consumption or crash) and possibly execute arbitrary code via (1) a packet with a negative size value, which is treated as a large positive number during memory allocation, or (2) a negative size value in a package file.

Frequently asked questions

What is CVE-2003-1432?: Epic Games Unreal Engine 226f through 436 allows remote attackers to cause a denial of service (CPU consumption or crash) and possibly execute arbitrary code via (1) a packet with a negative size value, which is treated as a large positive number during memory allocation, or (2) a negative size value in a package file.
How severe is CVE-2003-1432?: CVE-2003-1432 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2003-1432 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2003-1432?: CVE-2003-1432 primarily affects Epic Games Unreal Engine. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2003-1432?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2003-1432 published?: CVE-2003-1432 was published on 2003-12-31 and last updated on 2026-06-16.

References

Affected products (7)

cpe:2.3:a:epic_games:unreal_engine:226f:*:*:*:*:*:*:*
cpe:2.3:a:epic_games:unreal_engine:433:*:*:*:*:*:*:*
cpe:2.3:a:epic_games:unreal_engine:436:*:*:*:*:*:*:*
cpe:2.3:a:epic_games:unreal_tournament_2003:2199_linux:*:*:*:*:*:*:*
cpe:2.3:a:epic_games:unreal_tournament_2003:2199_win32:*:*:*:*:*:*:*
cpe:2.3:a:epic_games:unreal_tournament_2003:demo_version_2206_linux:*:*:*:*:*:*:*
cpe:2.3:a:epic_games:unreal_tournament_2003:demo_version_2206_win32:*:*:*:*:*:*:*

More vulnerabilities in Epic Games Unreal Engine

CVE-2004-0608 — Critical (CVSS 10.0): The Unreal Engine, as used in DeusEx 1.112fm and earlier, Devastation 390 and earlier, Mobile Forces 20000 and earlier,…
CVE-2003-1431 — High (CVSS 7.1): Buffer overflow in Epic Games Unreal Engine 226f through 436 allows remote attackers to cause a denial of service…
CVE-2007-4442 — Medium (CVSS 5.0): Stack-based buffer overflow in the logging function in the Unreal engine, possibly 2003 and 2004, as used in the…
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CVE-2004-1958 — Medium (CVSS 5.0): Directory traversal vulnerability in manifest.ini in Unreal engine allows remote attackers to overwrite arbitrary files…
CVE-2004-1805 — Medium (CVSS 5.0): Format string vulnerability in games using the Epic Games Unreal Engine 436 allows remote attackers to cause a denial…

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