{"id":"PYSEC-2025-172","details":"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.","aliases":["CVE-2025-5165"],"modified":"2026-05-21T15:00:26.657543868Z","published":"2025-05-26T03:15:36.373Z","references":[{"type":"ADVISORY","url":"https://vuldb.com/?id.310253"},{"type":"ADVISORY","url":"https://vuldb.com/?submit.578000"},{"type":"REPORT","url":"https://github.com/assimp/assimp/issues/6128"},{"type":"REPORT","url":"https://github.com/assimp/assimp/issues/6167"},{"type":"REPORT","url":"https://vuldb.com/?ctiid.310253"},{"type":"EVIDENCE","url":"https://github.com/user-attachments/files/20204942/reproducer.zip"}],"affected":[{"package":{"name":"pyassimp","ecosystem":"PyPI","purl":"pkg:pypi/pyassimp"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"5.4.3"}]}],"versions":["0.1","3.3","4.1.1","4.1.2","4.1.3","4.1.4","5.2.5"],"ecosystem_specific":{},"database_specific":{"source":"https://github.com/pypa/advisory-database/blob/main/vulns/pyassimp/PYSEC-2025-172.yaml"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}