Heap-buffer-overflow write in FFmpeg EXR dwa_uncompress

{
  "id": "9f27ac456408e666d41eb87e2a22b92cd2b195a1be7bfdffeabde8e29ed21ff3",
  "url": "https://osv.dev/vulnerability/CVE-2025-59731",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Heap-buffer-overflow write in FFmpeg EXR dwa_uncompress",
    "summary": "When decoding an OpenEXR file that uses DWAA or DWAB compression, the specified raw length of run-length-encoded data is not checked when using it to calculate the output data. We read rle_raw_size from the input file at [0], we decompress and decode into the buffer td->rle_raw_data of size rle_raw_size at [1], and then at [2] we will access entries in this buffer up to (td->xsize - 1) * (td->ysize - 1) + rle_raw_size / 2, which may exceed rle_raw_size. We recommend upgrading to version 8.0 or beyond.",
    "evidence": "osv:CVE-2025-59731",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2025-59731",
      "aliases": [
        "CVE-2025-59731"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:A/AC:H/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.ffmpeg.org/ffmpeg.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "140fd653aed8cad774f991ba083e2d01e86420c7"
                },
                {
                  "introduced": "db69d06eeeab4f46da15030a80d539efb4503ca8"
                },
                {
                  "fixed": "140fd653aed8cad774f991ba083e2d01e86420c7"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "9a32b863074ed4140141e0d3613905c6f1fe61c5"
                      },
                      {
                        "fixed": "8.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "introduced": "7.1.1"
                      },
                      {
                        "fixed": "8.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  }
                ]
              }
            }
          ],
          "versions": [
            "n7.2-dev",
            "n7.1-dev",
            "n6.2-dev",
            "n6.1-dev",
            "n5.2-dev",
            "n5.1-dev",
            "n4.5-dev",
            "n4.4-dev",
            "n4.3-dev",
            "n4.2-dev",
            "n4.1-dev",
            "n3.5-dev",
            "n3.4-dev",
            "n3.3-dev",
            "n3.2-dev",
            "n3.1-dev",
            "n2.9-dev",
            "n2.8-dev",
            "n2.7-dev",
            "n2.6-dev",
            "n2.5-dev",
            "n2.4-dev",
            "n2.3-dev",
            "n2.2-dev",
            "n2.0",
            "n2.1-dev",
            "n1.3-dev",
            "n1.2-dev",
            "n1.1-dev",
            "n0.12-dev",
            "n0.11-dev",
            "n0.8",
            "N"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-59731.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:53.032685221Z",
      "provider": "osv",
      "references": [
        "https://issuetracker.google.com/436510153",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/59xxx/CVE-2025-59731.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-59731",
        "https://git.ffmpeg.org/ffmpeg.git"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-787"
        ],
        "cna_assigner": "Google",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/59xxx/CVE-2025-59731.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-59731",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 521922,
  "published_at": "2025-10-06T08:09:23.41+00:00"
}