Security advisory

{
  "id": "b8ed0639af1d653a0a3e6c6dec50cb25dd4b432753155d3b61b279cda540c5ef",
  "url": "https://osv.dev/vulnerability/CVE-2020-24020",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-24020",
    "summary": "Buffer Overflow vulnerability in FFMpeg 4.2.3 in dnn_execute_layer_pad in libavfilter/dnn/dnn_backend_native_layer_pad.c due to a call to memcpy without length checks, which could let a remote malicious user execute arbitrary code.",
    "evidence": "osv:CVE-2020-24020",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2020-24020",
      "aliases": [
        "CVE-2020-24020"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.ffmpeg.org/ffmpeg.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "d3b963cc41824a3c5b2758ac896fb23e20a87875"
                },
                {
                  "last_affected": "d3b963cc41824a3c5b2758ac896fb23e20a87875"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:ffmpeg:ffmpeg:4.2.3:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.2.3"
                      },
                      {
                        "last_affected": "4.2.3"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "4.2.3",
            "n4.2.3"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-24020.json"
          }
        },
        {
          "ranges": [
            {
              "repo": "https://github.com/ffmpeg/ffmpeg",
              "type": "GIT",
              "events": [
                {
                  "introduced": "d3b963cc41824a3c5b2758ac896fb23e20a87875"
                },
                {
                  "last_affected": "d3b963cc41824a3c5b2758ac896fb23e20a87875"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:ffmpeg:ffmpeg:4.2.3:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.2.3"
                      },
                      {
                        "last_affected": "4.2.3"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "4.2.3",
            "n4.2.3"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-24020.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:37.944805468Z",
      "provider": "osv",
      "references": [
        "https://trac.ffmpeg.org/ticket/8718"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-24020",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 434336,
  "published_at": "2021-05-26T15:15:07.897+00:00"
}