CVE-2025-5165: PYSEC-2025-172 - A vulnerability was found in Open Asset Import Library Assimp 5.4.3 and classified as problematic…

CVE-2025-5165 · Severity: low · CVSS 3.1 · Published 2025-05-26

A vulnerability was found in Open Asset Import Library Assimp 5.4.3 and classified as problematic. This issue affects the function MDCImporter::ValidateSurfaceHeader of the file assimp/code/AssetLib/MDC/MDCLoader.cpp. The manipulation of the argument pcSurface2 leads to out-of-bounds read. 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.

Technologies: pyassimp (PyPI). Vendors: PyPI.

Quick answers

Is CVE-2025-5165 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2025-5165 being exploited in the wild.
How severe is CVE-2025-5165?
Low severity, with a CVSS score of 3.1, published 26 May 2025.
Which products and versions are affected?
pyassimp (PyPI) ECOSYSTEM:introduced=0,last_affected=5.4.3.
Is there a fix for CVE-2025-5165?
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-2025-5165?
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-2025-5165
  • PYSEC-2025-172

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