CVE-2025-6119: assimp Buffer Overflow — Exploit

Description

A vulnerability classified as critical has been found in Open Asset Import Library Assimp up to 5.4.3. Affected is the function Assimp::BVHLoader::ReadNodeChannels in the library assimp/code/AssetLib/BVH/BVHLoader.cpp. The manipulation of the argument pNode leads to use after free. 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.

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CVSS v3.1 Score

5.3

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Weakness Type (CWE)

CWE-119 Buffer Overflow

CWE-416 Use After Free

Affected Products

Vendor	Product	Versions
assimp	assimp	< 5.4.3

References

Exploits

https://github.com/assimp/assimp/issues/6219 https://github.com/user-attachments/files/20604791/reproduce_2.tar.gz

Other References

https://github.com/assimp/assimp/issues/6219#issuecomment-2945016005 https://vuldb.com/?ctiid.312588 https://vuldb.com/?id.312588 https://vuldb.com/?submit.591233

Frequently Asked Questions

What is CVE-2025-6119? +

A vulnerability classified as critical has been found in Open Asset Import Library Assimp up to 5.4.3. Affected is the function Assimp::BVHLoader::ReadNodeChannels in the library assimp/code/AssetLib/BVH/BVHLoader.cpp. The manipulation of the argument pNode leads to use after free. 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. It has a CVSS v3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2025-6119? +

CVE-2025-6119 has a CVSS v3.1 score of 5.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-6119? +

CVE-2025-6119 affects products from assimp, specifically: assimp. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-6119? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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