What’s Vulnerable › Vulnerabilities

CVE-2025-5166: Open Asset Import Library Assimp MDC File Parser MDCLoader.cpp InternReadFile out-of-bounds

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-05-26 · updated 2026-06-17
• Weakness: CWE-119

Description

A vulnerability was found in Open Asset Import Library Assimp 5.4.3. It has been classified as problematic. Affected is the function MDCImporter::InternReadFile of the file assimp/code/AssetLib/MDC/MDCLoader.cpp of the component MDC File Parser. The manipulation of the argument pcVerts leads to out-of-bounds read. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used. The project decided to collect all Fuzzer bugs in a main-issue to address them in the future.

Affected products

• Open Asset Import Library Assimp: 5.4.3

References

• https://github.com/assimp/assimp/issues/6128
• https://github.com/assimp/assimp/issues/6168
• https://github.com/user-attachments/files/20208318/reproducer.zip
• https://vuldb.com/?ctiid.310254
• https://vuldb.com/?id.310254
• https://vuldb.com/?submit.578001
• https://github.com/assimp/assimp/issues/6168

Get alerted when CVE-2025-5166 or the next vulnerability affects your stack