CVE-2025-3549: Assimp

Low severity, CVSS 3.3. EPSS: 0.3% chance of exploitation in the next 30 days.

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.

Affected products

• Assimp Assimp: version 5.4.3 only

Published 2025-04-14. Last modified 2026-06-17.