CVE-2025-6120 - CVE House
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Status published Medium CVE-2025-6120

Open Asset Import Library Assimp HL1MDLLoader.cpp read_meshes heap-based overflow

Vulnerability Description

A vulnerability classified as critical was found in Open Asset Import Library Assimp up to 5.4.3. Affected by this vulnerability is the function read_meshes in the library assimp/code/AssetLib/MDL/HalfLife/HL1MDLLoader.cpp. The manipulation leads to heap-based buffer overflow. 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Rulkallos (VulDB User)

Affected Vendor

Open Asset Import Library

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Affected Software

Assimp
Vulnerable Versions:
5.4.0, 5.4.1, 5.4.2, 5.4.3

Timeline

Official Publish: June 16th, 2025
Last Modified: June 16th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

Weaknesses (CWE)