Format string vulnerability in the Epic Games Unreal engine client, as used in multiple…
Priority MEDIUM 46CWE-134Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- 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-134 and the CVSS impact.
Summary
Format string vulnerability in the Epic Games Unreal engine client, as used in multiple games, allows remote servers to execute arbitrary code via (1) the CLASS parameter in a DLMGR command, (2) a malformed package (PKG), and possibly (3) the LEVEL parameter in a WELCOME command.
Why it matters now
EPSS 0.03503 89th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet
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
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2008-6441
- 2026-10-03 Alias added: GHSA-p2xf-59pp-g3wc
References
More Epicgames Unreal Engine vulnerabilities
- TI-2010-02592 Buffer overflow in the UGameEngine::UpdateConnectingMessage function in the Unreal engine… CVSS 2.0HIGH 9.3
Sources
- CVE-2008-6441 · CVE Program
- CVE-2008-6441 · NVD
- FIRST EPSS
- GHSA-p2xf-59pp-g3wc · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences