Security advisory

{
  "id": "3583f04e01619dcfa9405ed1724c8ea4e93a9d2a7bd7cd06a4c6a0ece256ff03",
  "url": "https://osv.dev/vulnerability/CVE-2021-37595",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-37595",
    "summary": "In FreeRDP before 2.4.0 on Windows, wf_cliprdr_server_file_contents_request in client/Windows/wf_cliprdr.c has missing input checks for a FILECONTENTS_RANGE File Contents Request PDU.",
    "evidence": "osv:CVE-2021-37595",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2021-37595",
      "aliases": [
        "CVE-2021-37595"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/freerdp/freerdp",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "0d79670a28c0ab049af08613621aa0c267f977e9"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "fixed": "0d79670a28c0ab049af08613621aa0c267f977e9"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.0.0",
            "2.0.0-rc4",
            "2.0.0-rc3",
            "2.0.0-rc2",
            "2.0.0-rc1",
            "2.0.0-rc0",
            "2.0.0-beta1+android11",
            "2.0.0-beta1+android10",
            "1.2.0-beta1+android9",
            "1.2.0-beta1+android7",
            "1.1.0-beta+2013071101",
            "1.1.0-beta1+ios4",
            "1.1.0-beta1+android5",
            "1.1.0-beta1+android4",
            "1.1.0-beta1+ios3",
            "1.1.0-beta1+ios2",
            "1.1.0-beta1+android3",
            "1.1.0-beta1+android2",
            "1.1.0-beta1+ios1",
            "1.1.0-beta1",
            "1.0.1",
            "1.0.0",
            "1.0-beta5",
            "1.0-beta4",
            "1.0-beta2",
            "1.0-beta1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-37595.json",
            "vanir_signatures": [
              {
                "id": "CVE-2021-37595-58d482d9",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
                    "44859094772190216799483516006255789160",
                    "219582746594949160081117655936496938833",
                    "337053645452655611994011021087069876974",
                    "157259336771431149205545503885757036729",
                    "16460976124722009597311657320769444060",
                    "320878770284945101366523910707824176850",
                    "317369928379971298341380892351169113023",
                    "15127744638068472434780109462571759255"
                  ]
                },
                "source": "https://github.com/freerdp/freerdp/commit/0d79670a28c0ab049af08613621aa0c267f977e9",
                "target": {
                  "file": "client/Windows/wf_cliprdr.c"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              },
              {
                "id": "CVE-2021-37595-c850f4b2",
                "digest": {
                  "length": 2892,
                  "function_hash": "194536018336980843487164271303679038672"
                },
                "source": "https://github.com/freerdp/freerdp/commit/0d79670a28c0ab049af08613621aa0c267f977e9",
                "target": {
                  "file": "client/Windows/wf_cliprdr.c",
                  "function": "wf_cliprdr_server_file_contents_request"
                },
                "deprecated": false,
                "signature_type": "Function",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-20T14:28:08Z"
          }
        }
      ],
      "modified": "2026-10-20T14:28:08.729971298Z",
      "provider": "osv",
      "references": [
        "https://github.com/FreeRDP/FreeRDP/compare/2.3.2...2.4.0",
        "https://github.com/FreeRDP/FreeRDP/commit/0d79670a28c0ab049af08613621aa0c267f977e9"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*"
            ],
            "vendor_product": "freerdp:freerdp",
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "2.4.0"
                  }
                ],
                "source": "CPE_RANGE"
              }
            ]
          },
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "2.4.0"
                  }
                ],
                "source": "DESCRIPTION"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2021-37595",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 389010,
  "published_at": "2021-07-30T14:15:18.673+00:00"
}