Epic Games Unreal Engine 226f through 436 allows remote attackers to cause a denial of…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-189 and the CVSS impact.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:epic_games:unreal_engine:226f:*:*:*:*:*:*:* | 226f | Vulnerable | Epic Games |
| cpe:2.3:a:epic_games:unreal_engine:433:*:*:*:*:*:*:* | 433 | Vulnerable | Epic Games |
| cpe:2.3:a:epic_games:unreal_engine:436:*:*:*:*:*:*:* | 436 | Vulnerable | Epic Games |
| cpe:2.3:a:epic_games:unreal_tournament_2003:2199_linux:*:*:*:*:*:*:* | 2199_linux | Vulnerable | Epic Games |
| cpe:2.3:a:epic_games:unreal_tournament_2003:2199_win32:*:*:*:*:*:*:* | 2199_win32 | Vulnerable | Epic Games |
| cpe:2.3:a:epic_games:unreal_tournament_2003:demo_version_2206_linux:*:*:*:*:*:*:* | demo_version_2206_linux | Vulnerable | Epic Games |
| cpe:2.3:a:epic_games:unreal_tournament_2003:demo_version_2206_win32:*:*:*:*:*:*:* | demo_version_2206_win32 | Vulnerable | Epic Games |
- cpe:2.3:a:epic_games:unreal_engine:226f:*:*:*:*:*:*:* Versions 226f Vulnerable ·Epic Games
- cpe:2.3:a:epic_games:unreal_engine:433:*:*:*:*:*:*:* Versions 433 Vulnerable ·Epic Games
- cpe:2.3:a:epic_games:unreal_engine:436:*:*:*:*:*:*:* Versions 436 Vulnerable ·Epic Games
- cpe:2.3:a:epic_games:unreal_tournament_2003:2199_linux:*:*:*:*:*:*:* Versions 2199_linux Vulnerable ·Epic Games
- cpe:2.3:a:epic_games:unreal_tournament_2003:2199_win32:*:*:*:*:*:*:* Versions 2199_win32 Vulnerable ·Epic Games
- cpe:2.3:a:epic_games:unreal_tournament_2003:demo_version_2206_linux:*:*:*:*:*:*:* Versions demo_version_2206_linux Vulnerable ·Epic Games
- cpe:2.3:a:epic_games:unreal_tournament_2003:demo_version_2206_win32:*:*:*:*:*:*:* Versions demo_version_2206_win32 Vulnerable ·Epic Games
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2003-1432
- 2026-10-03 Alias added: GHSA-h457-7gvf-jx74
References
More Epic Games Unreal Engine vulnerabilities
- TI-2004-00549 The Unreal Engine, as used in DeusEx 1.112fm and earlier, Devastation 390 and earlier… CVSS 2.0HIGH 10.0
- TI-2003-01331 Buffer overflow in Epic Games Unreal Engine 226f through 436 allows remote attackers to… CVSS 2.0HIGH 7.1
- TI-2004-01680 Format string vulnerability in games using the Epic Games Unreal Engine 436 allows remote… CVSS 2.0MEDIUM 5.0
- TI-2007-04302 Stack-based buffer overflow in the logging function in the Unreal engine, possibly 2003… CVSS 2.0MEDIUM 5.0
- TI-2003-01330 Directory traversal vulnerability in Unreal Tournament Server 436 and earlier allows… CVSS 2.0MEDIUM 5.0
- TI-2004-01831 Directory traversal vulnerability in manifest.ini in Unreal engine allows remote… CVSS 2.0MEDIUM 5.0
Sources
- CVE-2003-1432 · CVE Program
- CVE-2003-1432 · NVD
- FIRST EPSS
- GHSA-h457-7gvf-jx74 · GitHub Advisory Database · CC BY 4.0
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