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CVE-2021-3774

Estado: ModificadaMedia (6.5)—

Meross Smart Wi-Fi 2 Way Wall Switch (MSS550X), on its 3.1.3 version and before, creates an open Wi-Fi Access Point without the required security measures in its initial setup. This could allow a remote attacker to obtain the Wi-Fi SSID as well as the password configured by the user from Meross app via Http/JSON plain request.

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)

Meross — Mss550x Firmware

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2021-3774",
  "cveTags": [],
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          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
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              "automatable": "no"
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              "technicalImpact": "partial"
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          "version": "2.0.3",
          "timestamp": "2025-04-23T13:10:15.464816Z"
        }
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          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
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        "acInsufInfo": false,
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        "obtainAllPrivilege": false,
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    "cvssMetricV31": [
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        "type": "Secondary",
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          "versions": [
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              "version": "0",
              "versionType": "custom",
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  "published": "2021-11-05T21:15:08.480",
  "references": [
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "value": "Meross Smart Wi-Fi 2 Way Wall Switch (MSS550X), on its 3.1.3 version and before, creates an open Wi-Fi Access Point without the required security measures in its initial setup. This could allow a remote attacker to obtain the Wi-Fi SSID as well as the password configured by the user from Meross app via Http/JSON plain request."
    },
    {
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      "value": "Meross Smart Wi-Fi 2 Way Wall Switch (MSS550X), en su versión 3.1.3 y anteriores, crea un punto de acceso Wi-Fi abierto sin las medidas de seguridad necesarias en su configuración inicial. Esto podría permitir a un atacante remoto obtener el SSID Wi-Fi así como la contraseña configurada por el usuario desde la app de Meross por medio de una petición Http/JSON simple"
    }
  ],
  "lastModified": "2026-06-17T04:05:44.280",
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