{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "4.4"
              },
              {
                "last_affected": "8.1.2"
              }
            ],
            "source": "CPE_RANGE"
          },
          "events": [
            {
              "introduced": "c5079bf3bccd24bf8ed45ff47ff4071fd09e9fd8"
            },
            {
              "last_affected": "38b88335f99e76ed89ff3c93f877fdefce736c13"
            }
          ],
          "repo": "https://github.com/ffmpeg/ffmpeg",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-415"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64832.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "introduced": "4.4"
          },
          {
            "last_affected": "8.1.2"
          },
          {
            "introduced": "4c6217477fc64305055b37d9d1d0d76d30e37f97"
          },
          {
            "last_affected": "4c6217477fc64305055b37d9d1d0d76d30e37f97"
          }
        ],
        "source": "AFFECTED_FIELD"
      },
      {
        "extracted_events": [
          {
            "introduced": "4.4"
          },
          {
            "last_affected": "8.1.2"
          }
        ],
        "source": "CPE_FIELD"
      },
      {
        "extracted_events": [
          {
            "introduced": "4.4"
          },
          {
            "fixed": "8.1.2"
          }
        ],
        "source": "DESCRIPTION"
      }
    ]
  },
  "details": "FFmpeg versions 4.4 through 8.1.2 contain a double-free vulnerability in the NVIDIA NVDEC hardware decoder within libavcodec/nvdec.c that allows attackers to trigger memory corruption by supplying a crafted video file. When no decoder surfaces remain, the ff_nvdec_start_frame_sep_ref error path frees memory via nvdec_fdd_priv_free while the calling layer subsequently frees the same frame description data, resulting in a double-free of the underlying decoder context in any FFmpeg-based application using NVDEC hardware-accelerated decoding.",
  "id": "CVE-2026-64832",
  "modified": "2026-07-30T03:52:44.965912119Z",
  "published": "2026-07-22T17:01:16.181Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://code.ffmpeg.org/FFmpeg/FFmpeg"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64832.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64832"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/ffmpeg-double-free-in-nvdec-hardware-decoder-via-nvdec-c"
    },
    {
      "type": "REPORT",
      "url": "https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23664"
    },
    {
      "type": "FIX",
      "url": "https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/4c6217477fc64305055b37d9d1d0d76d30e37f97"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "FFmpeg 4.4 - 8.1.2 Double-Free in NVDEC Hardware Decoder via nvdec.c"
}