CVE-2003-1432

Exp

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.

Published: 2003-12-31 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2003-1432 is rated High Exploit Risk (82.8/100): CVSS Critical severity, with high exploitation likelihood (EPSS 7.54%, 94th percentile). 2 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2003-1432

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2003-1432

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 19.27% 7.54% -11.73%
2 2026-06-11 18.68% 19.27% +0.59%
3 2025-03-30 — 18.68% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2003-1432

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
10.0 2.0 HIGH
AV:N/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 10.0 [email protected]

Weakness enumeration for CVE-2003-1432

Affected software / configurations for CVE-2003-1432

Vendor Product Version Raw CPE
epic_games unreal_engine 226f cpe:2.3:a:epic_games:unreal_engine:226f:*:*:*:*:*:*:*
epic_games unreal_engine 433 cpe:2.3:a:epic_games:unreal_engine:433:*:*:*:*:*:*:*
epic_games unreal_engine 436 cpe:2.3:a:epic_games:unreal_engine:436:*:*:*:*:*:*:*
epic_games unreal_tournament_2003 2199_linux cpe:2.3:a:epic_games:unreal_tournament_2003:2199_linux:*:*:*:*:*:*:*
epic_games unreal_tournament_2003 2199_win32 cpe:2.3:a:epic_games:unreal_tournament_2003:2199_win32:*:*:*:*:*:*:*
epic_games unreal_tournament_2003 demo_version_2206_linux cpe:2.3:a:epic_games:unreal_tournament_2003:demo_version_2206_linux:*:*:*:*:*:*:*
epic_games unreal_tournament_2003 demo_version_2206_win32 cpe:2.3:a:epic_games:unreal_tournament_2003:demo_version_2206_win32:*:*:*:*:*:*:*

References for CVE-2003-1432

cvelogic Threat Intelligence