CVE-2025-2591: PYSEC-2025-160 - A vulnerability classified as problematic was found in Open Asset Import Library Assimp 5.4.3. This…

CVE-2025-2591 · Severity: low · CVSS 3.1 · Published 2025-03-21

A vulnerability classified as problematic was found in Open Asset Import Library Assimp 5.4.3. This vulnerability affects the function MDLImporter::InternReadFile_Quake1 of the file code/AssetLib/MDL/MDLLoader.cpp. The manipulation of the argument skinwidth/skinheight leads to divide by zero. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The patch is identified as ab66a1674fcfac87aaba4c8b900b315ebc3e7dbd. It is recommended to apply a patch to fix this issue.

Technologies: pyassimp (PyPI). Vendors: PyPI.

Quick answers

Is CVE-2025-2591 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2025-2591 being exploited in the wild.
How severe is CVE-2025-2591?
Low severity, with a CVSS score of 3.1, published 21 March 2025.
Which products and versions are affected?
pyassimp (PyPI) ECOSYSTEM:introduced=0,last_affected=5.4.3.
Is there a fix for CVE-2025-2591?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2025-2591?
Check whether you run pyassimp (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • pyassimp (PyPI) ECOSYSTEM:introduced=0,last_affected=5.4.3

Identifiers

  • CVE-2025-2591
  • PYSEC-2025-160

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