← Back to CVE Explorer

CVE-2025-70520

Full vulnerability record from the local CVENow database.

Description

The websocket handler of Fanvil x7a firmware version 2.6.0.1182 does not enforce proper authentication restrictions against sessionless users. The lack of restrictions grants anyone the ability to view any device resources such as operational logs or perform diagnostic requests.

Severity
CRITICAL
CVSS score
9.8 (v3.1)
Vulnerability status
Deferred
Source identifier
Published
2026-10-07 15:16:54.640000
Last modified
2026-10-26 21:10:00.170000
View original CVE JSON
{
  "id": "CVE-2025-70520",
  "sourceIdentifier": "[email protected]",
  "published": "2026-10-07T15:16:54.640",
  "lastModified": "2026-10-26T21:10:00.170",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The websocket handler of Fanvil x7a firmware version 2.6.0.1182 does not enforce proper authentication restrictions against sessionless users. The lack of restrictions grants anyone the ability to view any device resources such as operational logs or perform diagnostic requests."
    },
    {
      "lang": "es",
      "value": "La función de manejo de websocket del firmware de Fanvil x7a versión 2.6.0.1182 no impone restricciones de autenticación adecuadas contra usuarios sin sesión. La falta de restricciones permite a cualquier persona visualizar cualquier recurso del dispositivo, como registros operativos, o realizar solicitudes de diagnóstico."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "version": "n/a",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-10-15T18:32:23.898155Z",
          "id": "CVE-2025-70520",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-306"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "http://download.fanvil.com/Firmware/Release/PA2S/",
      "source": "[email protected]"
    },
    {
      "url": "https://www.darkpoint.ca/blog/2026/02/27/Fanvil-x7a-PA2S-Vulnerability-Disclosure",
      "source": "[email protected]"
    },
    {
      "url": "https://www.fanvil.com/products/p5/wulianwangwangguan_1/20210921/5035.html",
      "source": "[email protected]"
    },
    {
      "url": "https://www.darkpoint.ca/blog/2026/02/27/Fanvil-x7a-PA2S-Vulnerability-Disclosure",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ]
}