Open Asset Import Library Assimp File MD3Loader.cpp ValidateSurfaceHeaderOffsets heap-based overflow
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
A vulnerability, which was classified as critical, was found in Open Asset Import Library Assimp 5.4.3. Affected is the function Assimp::MD3Importer::ValidateSurfaceHeaderOffsets of the file code/AssetLib/MD3/MD3Loader.cpp of the component File Handler. The manipulation leads to heap-based buffer overflow. The attack needs to be approached locally. The exploit has been disclosed to the public and may be used.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Open Asset Import Library | Assimp | 5.4.3 | — | No fix listed | CNA |
- Assimp VendorOpen Asset Import Library Affected 5.4.3 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:assimp:assimp:5.4.3:*:*:*:*:*:*:* | 5.4.3 | Vulnerable | Open Asset Import Library |
- cpe:2.3:a:assimp:assimp:5.4.3:*:*:*:*:*:*:* Versions 5.4.3 Vulnerable ·Open Asset Import Library
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 1 product
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2025-3549
- 2026-10-03 Alias added: GHSA-cxqg-678v-hmf9
References
More Open Asset Import Library Assimp vulnerabilities
- TI-2022-22579 An issue was discovered with assimp 5.1.4, a use after free occurred in function… CVSS 3.1HIGH 8.8
- TI-2024-32382 An issue in assimp v.5.4.3 allows a local attacker to execute arbitrary code via the… CVSS 3.1HIGH 8.4
- TI-2024-35797 A heap-buffer-overflow vulnerability was discovered in the SkipSpacesAndLineEnd function… CVSS 3.1MEDIUM 6.2
- TI-2024-32385 A segmentation fault (SEGV) was detected in the SortByPTypeProcess::Execute function in… CVSS 3.1MEDIUM 6.2
- TI-2024-32384 A segmentation fault (SEGV) was detected in the… CVSS 3.1MEDIUM 5.5
- TI-2024-32383 A heap-buffer-overflow vulnerability has been identified in the… CVSS 3.1MEDIUM 5.5
Sources
- CVE-2025-3549 · CVE Program
- CVE-2025-3549 · NVD
- FIRST EPSS
- GHSA-cxqg-678v-hmf9 · GitHub Advisory Database · CC BY 4.0
- CVE-2025-3549 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences