affected:
- ecosystem_specific: {}
  package:
    ecosystem: PyPI
    name: pyassimp
    purl: pkg:pypi/pyassimp
  ranges:
  - events:
    - introduced: '0'
    - last_affected: 5.4.3
    type: ECOSYSTEM
  versions:
  - '0.1'
  - '3.3'
  - 4.1.1
  - 4.1.2
  - 4.1.3
  - 4.1.4
  - 5.2.5
aliases:
- CVE-2025-3158
details: A vulnerability, which was classified as critical, has been found in Open
  Asset Import Library Assimp 5.4.3. Affected by this issue is the function Assimp::LWO::AnimResolver::UpdateAnimRangeSetup
  of the file code/AssetLib/LWO/LWOAnimation.cpp of the component LWO File Handler.
  The manipulation leads to heap-based buffer overflow. It is possible to launch the
  attack on the local host. The exploit has been disclosed to the public and may be
  used.
id: PYSEC-2025-169
modified: '2026-05-21T14:54:39.450215Z'
published: '2025-04-03T14:15:46.783Z'
references:
- type: ADVISORY
  url: https://vuldb.com/?id.303104
- type: ADVISORY
  url: https://vuldb.com/?submit.542246
- type: REPORT
  url: https://github.com/assimp/assimp/issues/6023
- type: REPORT
  url: https://github.com/assimp/assimp/issues/6023#issue-2877381000
- type: REPORT
  url: https://vuldb.com/?ctiid.303104
severity:
- score: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
  type: CVSS_V3