What’s Vulnerable › Vulnerabilities

CVE-2025-5165: Open Asset Import Library Assimp MDCLoader.cpp ValidateSurfaceHeader 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 and classified as problematic. This issue affects the function MDCImporter::ValidateSurfaceHeader of the file assimp/code/AssetLib/MDC/MDCLoader.cpp. The manipulation of the argument pcSurface2 leads to out-of-bounds read. Attacking locally is a requirement. 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/6167
• https://github.com/user-attachments/files/20204942/reproducer.zip
• https://vuldb.com/?ctiid.310253
• https://vuldb.com/?id.310253
• https://vuldb.com/?submit.578000
• https://github.com/assimp/assimp/issues/6167

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