CVE-2025-3549: PYSEC-2025-171 - A vulnerability, which was classified as critical, was found in Open Asset Import Library Assimp…

CVE-2025-3549 · Severity: low · CVSS 3.1 · Published 2025-04-14

A vulnerability, which was classified as critical, was found in Open Asset Import Library Assimp 5.4.3. Affected is the function Assimp::MD3Importer::ValidateSurfaceHeaderOffsets of the file code/AssetLib/MD3/MD3Loader.cpp of the component File Handler. The manipulation leads to heap-based buffer overflow. The attack needs to be approached locally. The exploit has been disclosed to the public and may be used.

Technologies: pyassimp (PyPI). Vendors: PyPI.

Quick answers

Is CVE-2025-3549 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2025-3549 being exploited in the wild.
How severe is CVE-2025-3549?
Low severity, with a CVSS score of 3.1, published 14 April 2025.
Which products and versions are affected?
pyassimp (PyPI) ECOSYSTEM:introduced=0,last_affected=5.4.3.
Is there a fix for CVE-2025-3549?
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-2025-3549?
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-2025-3549
  • PYSEC-2025-171

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