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CVE-2021-44425

Estado: ModificadaMedia (6.5)—

Se ha detectado un problema en AnyDesk versiones anteriores a 6.2.6 y en versiones 6.3.x anteriores a 6.3.3. Un puerto de escucha innecesariamente abierto en una máquina en la LAN de un atacante, abierto por el cliente de Windows de AnyDesk cuando es usada la funcionalidad tunneling, permite al atacante acceder sin autorización a la pila de protocolos de tunelización de AnyDesk de la máquina local (y también a cualquier software de la máquina de destino remota que esté escuchando el puerto tunelizado de AnyDesk)

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-2021-44425",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.5,
          "attackVector": "ADJACENT_NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2022-09-12T21:15:09.070",
  "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": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in AnyDesk before 6.2.6 and 6.3.x before 6.3.3. An unnecessarily open listening port on a machine in the LAN of an attacker, opened by the Anydesk Windows client when using the tunneling feature, allows the attacker unauthorized access to the local machine's AnyDesk tunneling protocol stack (and also to any remote destination machine software that is listening to the AnyDesk tunneled port)."
    },
    {
      "lang": "es",
      "value": "Se ha detectado un problema en AnyDesk versiones anteriores a 6.2.6 y en versiones 6.3.x anteriores a 6.3.3. Un puerto de escucha innecesariamente abierto en una máquina en la LAN de un atacante, abierto por el cliente de Windows de AnyDesk cuando es usada la funcionalidad tunneling, permite al atacante acceder sin autorización a la pila de protocolos de tunelización de AnyDesk de la máquina local (y también a cualquier software de la máquina de destino remota que esté escuchando el puerto tunelizado de AnyDesk)"
    }
  ],
  "lastModified": "2026-06-17T04:12:19.593",
  "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"
}