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CVE-2022-25226

Estado: ModificadaCrítica (10)—

ThinVNC version 1.0b1 allows an unauthenticated user to bypass the authentication process via 'http://thin-vnc:8080/cmd?cmd=connect' by obtaining a valid SID without any kind of authentication. It is possible to achieve code execution on the server by sending keyboard or mouse events to the server.

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)

Cybelsoft — Thinvnc

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2022-25226",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 10,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "help@fluidattacks.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "ThinVNC",
          "versions": [
            {
              "status": "affected",
              "version": "1.0b1"
            }
          ]
        }
      ]
    }
  ],
  "published": "2022-04-18T17:15:16.693",
  "references": [
    {
      "url": "https://fluidattacks.com/advisories/sinatra/",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "help@fluidattacks.com"
    },
    {
      "url": "https://fluidattacks.com/advisories/sinatra/",
      "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-Other"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "ThinVNC version 1.0b1 allows an unauthenticated user to bypass the authentication process via 'http://thin-vnc:8080/cmd?cmd=connect' by obtaining a valid SID without any kind of authentication. It is possible to achieve code execution on the server by sending keyboard or mouse events to the server."
    },
    {
      "lang": "es",
      "value": "ThinVNC versión 1.0b1, permite a un usuario no autenticado omitir el proceso de autenticación por medio de \"http://thin-vnc:8080/cmd?cmd=connect\" al obtener un SID válido sin ningún tipo de autenticación. Es posible lograr una ejecución de código en el servidor mediante el envío de eventos de teclado o ratón al servidor"
    }
  ],
  "lastModified": "2026-06-17T04:33:14.310",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:cybelsoft:thinvnc:1.0:b1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "78FF286A-9DE2-4B98-B97B-ADCE15C80256"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "help@fluidattacks.com"
}