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CVE-2021-44426

Estado: ModificadaAlta (8.8)—

Se ha detectado un problema en AnyDesk versiones anteriores a 6.2.6 y versiones 6.3.x anteriores a 6.3.5. Es posible subir un archivo arbitrario al directorio local ~/Downloads/ de la víctima si ésta usa el cliente Windows de AnyDesk para conectarse a una máquina remota, si un atacante también es conectado remotamente con AnyDesk a la misma máquina remota. La carga es realizada sin ninguna aprobación o acción por parte de la víctima

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Anydesk — Anydesk

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-44426",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8.8,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2022-09-12T21:15:09.127",
  "references": [
    {
      "url": "https://anydesk.com/en/downloads/windows",
      "tags": [
        "Product",
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://argus-sec.com/discovering-tunneling-service-security-flaws-in-anydesk-remote-application/",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://anydesk.com/en/downloads/windows",
      "tags": [
        "Product",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://argus-sec.com/discovering-tunneling-service-security-flaws-in-anydesk-remote-application/",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-434"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in AnyDesk before 6.2.6 and 6.3.x before 6.3.5. An upload of an arbitrary file to a victim's local ~/Downloads/ directory is possible if the victim is using the AnyDesk Windows client to connect to a remote machine, if an attacker is also connected remotely with AnyDesk to the same remote machine. The upload is done without any approval or action taken by the victim."
    },
    {
      "lang": "es",
      "value": "Se ha detectado un problema en AnyDesk versiones anteriores a 6.2.6 y versiones 6.3.x anteriores a 6.3.5. Es posible subir un archivo arbitrario al directorio local ~/Downloads/ de la víctima si ésta usa el cliente Windows de AnyDesk para conectarse a una máquina remota, si un atacante también es conectado remotamente con AnyDesk a la misma máquina remota. La carga es realizada sin ninguna aprobación o acción por parte de la víctima"
    }
  ],
  "lastModified": "2026-06-17T04:12:19.717",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:anydesk:anydesk:*:*:*:*:*:windows:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C5CA60F4-25B6-44E9-997F-AD1CF9C7B34C",
              "versionEndExcluding": "6.2.6"
            },
            {
              "criteria": "cpe:2.3:a:anydesk:anydesk:*:*:*:*:*:windows:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C55E8126-92A0-4739-BB65-5F72B771EA58",
              "versionEndExcluding": "6.3.3",
              "versionStartIncluding": "6.3.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}