Vulnerability · Published Apr 4, 2025 · Assigned by VulDB
CVE-2025-3196Open Asset Import Library Assimp Malformed File MD2Loader.cpp InternReadFile stack-based overflow
Medium 5.3
In plain English
A medium-severity stack buffer overflow in Assimp from Open Asset Import Library. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 25% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
A vulnerability, which was classified as critical, was found in Open Asset Import Library Assimp 5.4.3. Affected is the function Assimp::MD2Importer::InternReadFile in the library code/AssetLib/MD2/MD2Loader.cpp of the component Malformed File Handler. The manipulation of the argument Name leads to stack-based buffer overflow. The attack needs to be approached locally. The exploit has been disclosed to the public and may be used. It is recommended to upgrade the affected component.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | assimp | no fix listed | DEBIAN-CVE-2025-3196 |
| Debian:13 | assimp | no fix listed | DEBIAN-CVE-2025-3196 |
| Debian:14 | assimp | 6.0.2+ds-1 | DEBIAN-CVE-2025-3196 |
| PyPI | pyassimp | no fix listed | PYSEC-2025-170 |
| Ubuntu:22.04:LTS | assimp | no fix listed | UBUNTU-CVE-2025-3196 |
| Ubuntu:24.04:LTS | assimp | no fix listed | UBUNTU-CVE-2025-3196 |
| Ubuntu:25.10 | assimp | no fix listed | UBUNTU-CVE-2025-3196 |
| Ubuntu:26.04:LTS | assimp | no fix listed | UBUNTU-CVE-2025-3196 |
| Ubuntu:26.10 | assimp | no fix listed | UBUNTU-CVE-2025-3196 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Open Asset Import Library | Assimp | 5.4.3 |
Weakness: CWE-121, CWE-119 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
References
- VDB-303150 | Open Asset Import Library Assimp Malformed File MD2Loader.cpp InternReadFile stack-based overflow vdb-entry, technical-description
- VDB-303150 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #545368 | Open Asset Import Library Assimp 5.4.3 Stack-based Buffer Overflow third-party-advisory
- https://github.com/assimp/assimp/issues/6069 exploit, issue-tracking
- https://github.com/assimp/assimp/issues/6069#issuecomment-2763273425 issue-tracking
- https://github.com/assimp/assimp/milestone/11 patch