{"id":"CVE-2025-3549","summary":"Open Asset Import Library Assimp File MD3Loader.cpp ValidateSurfaceHeaderOffsets heap-based overflow","details":"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.","aliases":["PYSEC-2025-171"],"modified":"2026-05-20T18:26:37.161603180Z","published":"2025-04-14T03:00:08.855Z","database_specific":{"cwe_ids":["CWE-119","CWE-122"],"cna_assigner":"VulDB","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/3xxx/CVE-2025-3549.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/3xxx/CVE-2025-3549.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-3549"},{"type":"ADVISORY","url":"https://vuldb.com/?id.304590"},{"type":"ADVISORY","url":"https://vuldb.com/?submit.546414"},{"type":"REPORT","url":"https://github.com/assimp/assimp/issues/6070"},{"type":"REPORT","url":"https://vuldb.com/?ctiid.304590"},{"type":"EVIDENCE","url":"https://github.com/user-attachments/files/19580481/Assimp_MD3Importer_ValidateSurfaceHeaderOffsets-hbo.zip"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/assimp/assimp","events":[{"introduced":"0"},{"last_affected":"c35200e38ea8f058812b83de2ef32c6093b0ece2"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"0"},{"last_affected":"5.4.3"}]}}],"versions":["v5.4.3","v5.4.2","v5.4.1","v5.4.0","v5.3.1","v5.3.0","v5.2.5","v5.2.4","v5.2.3","v5.2.2","v5.2.0","v5.2.1","5.2.0","v5.1.4","v5.1.6","v5.1.5","v5.1.3","v5.1.2","v5.1.1","v5.1.0","v5.1.0.rc1","v5.0.0","v.5.0.0.rc2","v.5.0.0.rc1","v4.1.0","v4.0.0","v4.0.0.rc1","v3.3.1","v3.3","v3.2","v3.1.1","v3.1-rc2","Release3.1_RC1"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-3549.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P"}]}