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CVE-2022-40621

Estado: ModificadaAlta (7.5)—

Because the WAVLINK Quantum D4G (WN531G3) running firmware version M31G3.V5030.200325 and earlier communicates over HTTP and not HTTPS, and because the hashing mechanism does not rely on a server-supplied key, it is possible for an attacker with sufficient network access to capture the hashed password of a logged on user and use it in a classic Pass-the-Hash style attack.

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)

Wavlink — Wn531g3 Firmware

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2022-40621",
  "cveTags": [],
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
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        "impactScore": 5.9,
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              "versionType": "custom",
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  "published": "2022-09-13T21:15:10.133",
  "references": [
    {
      "url": "https://www.malbytes.net/2022/07/wavlink-quantum-d4g-zero-day-part-01.html",
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        "Third Party Advisory"
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      "description": [
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          "value": "CWE-294"
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      "value": "Because the WAVLINK Quantum D4G (WN531G3) running firmware version M31G3.V5030.200325 and earlier communicates over HTTP and not HTTPS, and because the hashing mechanism does not rely on a server-supplied key, it is possible for an attacker with sufficient network access to capture the hashed password of a logged on user and use it in a classic Pass-the-Hash style attack."
    },
    {
      "lang": "es",
      "value": "Debido a que WAVLINK Quantum D4G (WN531G3) ejecutando la versión de firmware M31G3.V5030.200325 y anteriores, es comunicada a través de HTTP y no de HTTPS, y debido a que el mecanismo de hash no es basado en una clave suministrada por el servidor, es posible que un atacante con suficiente acceso a la red capture la contraseña hash de un usuario conectado y la use en un ataque clásico del tipo Pass-the-Hash"
    }
  ],
  "lastModified": "2026-06-17T05:01:43.540",
  "configurations": [
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