Security advisory

{
  "id": "376ecf73467e45600c08dd758e43e5b8dc862b63df471a017666f98ab3747761",
  "url": "https://osv.dev/vulnerability/CVE-2020-25741",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-25741",
    "summary": "fdctrl_write_data in hw/block/fdc.c in QEMU 5.0.0 has a NULL pointer dereference via a NULL block pointer for the current drive.",
    "evidence": "osv:CVE-2020-25741",
    "products": [],
    "severity": "low",
    "structured": {
      "id": "CVE-2020-25741",
      "aliases": [
        "CVE-2020-25741"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/qemu/qemu",
              "type": "GIT",
              "events": [
                {
                  "introduced": "fdd76fecdde1ad444ff4deb7f1c4f7e4a1ef97d6"
                },
                {
                  "last_affected": "fdd76fecdde1ad444ff4deb7f1c4f7e4a1ef97d6"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:qemu:qemu:5.0.0:-:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "5.0.0-NA"
                      },
                      {
                        "last_affected": "5.0.0-NA"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "5.0.0-NA",
            "v5.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-25741.json"
          }
        },
        {
          "ranges": [
            {
              "repo": "https://gitlab.com/qemu-project/qemu",
              "type": "GIT",
              "events": [
                {
                  "introduced": "fdd76fecdde1ad444ff4deb7f1c4f7e4a1ef97d6"
                },
                {
                  "last_affected": "fdd76fecdde1ad444ff4deb7f1c4f7e4a1ef97d6"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:qemu:qemu:5.0.0:-:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "5.0.0-NA"
                      },
                      {
                        "last_affected": "5.0.0-NA"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "5.0.0-NA",
            "v5.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-25741.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:38.188203910Z",
      "provider": "osv",
      "references": [
        "https://ruhr-uni-bochum.sciebo.de/s/NNWP2GfwzYKeKwE?path=%2Ffdc_nullptr1",
        "https://security.netapp.com/advisory/ntap-20201009-0005/",
        "https://lists.nongnu.org/archive/html/qemu-devel/2020-09/msg05295.html"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-25741",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 434380,
  "published_at": "2020-10-02T09:15:13.807+00:00"
}