Open Asset Import Library Assimp AC3D File ACLoader.cpp ConvertObjectSection heap-based overflow

{
  "id": "ac65f33d5fd63acf5dfbdfe2ad8d04a5a53a93c836e41523ae9ff818d58a4caa",
  "url": "https://osv.dev/vulnerability/CVE-2025-2754",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Open Asset Import Library Assimp AC3D File ACLoader.cpp ConvertObjectSection heap-based overflow",
    "summary": "A vulnerability was found in Open Asset Import Library Assimp 5.4.3. It has been declared as critical. Affected by this vulnerability is the function Assimp::AC3DImporter::ConvertObjectSection of the file code/AssetLib/AC/ACLoader.cpp of the component AC3D File Handler. The manipulation of the argument it leads to heap-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.",
    "evidence": "osv:CVE-2025-2754",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2025-2754",
      "aliases": [
        "CVE-2025-2754",
        "PYSEC-2025-165"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/assimp/assimp",
              "type": "GIT",
              "events": [
                {
                  "introduced": "c35200e38ea8f058812b83de2ef32c6093b0ece2"
                },
                {
                  "last_affected": "c35200e38ea8f058812b83de2ef32c6093b0ece2"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "5.4.3"
                      },
                      {
                        "last_affected": "5.4.3"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "cpe": "cpe:2.3:a:assimp:assimp:5.4.3:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "5.4.3"
                      },
                      {
                        "last_affected": "5.4.3"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "5.4.3",
            "v5.4.3"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-2754.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:24.811037052Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/2xxx/CVE-2025-2754.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-2754",
        "https://vuldb.com/?id.300859",
        "https://vuldb.com/?submit.517788",
        "https://github.com/assimp/assimp/issues/6015",
        "https://github.com/assimp/assimp/issues/6015#issue-2877373501",
        "https://vuldb.com/?ctiid.300859"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-119",
          "CWE-122"
        ],
        "cna_assigner": "VulDB",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/2xxx/CVE-2025-2754.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-2754",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 491433,
  "published_at": "2025-03-25T08:31:07.954+00:00"
}