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CVE-2021-20122

Estado: ModificadaAlta (7.2)—

The Telus Wi-Fi Hub (PRV65B444A-S-TS) with firmware version 3.00.20 is affected by an authenticated command injection vulnerability in multiple parameters passed to tr69_cmd.cgi. A remote attacker connected to the router's LAN and authenticated with a super user account, or using a bypass authentication vulnerability like CVE-2021-20090 could leverage this issue to run commands or gain a shell as root on the target device.

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)

Telus — Prv65b444a-s-ts Firmware

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2021-20122",
  "cveTags": [],
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        "source": "nvd@nist.gov",
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          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C",
          "authentication": "SINGLE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
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          "userInteraction": "NONE",
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  "affected": [
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      "affectedData": [
        {
          "vendor": "n/a",
          "product": "Telus Wi-Fi Hub (PRV65B444A-S-TS)",
          "versions": [
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              "status": "affected",
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  "published": "2021-10-11T17:15:07.497",
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  "vulnStatus": "Modified",
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          "value": "CWE-78"
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      "value": "The Telus Wi-Fi Hub (PRV65B444A-S-TS) with firmware version 3.00.20 is affected by an authenticated command injection vulnerability in multiple parameters passed to tr69_cmd.cgi. A remote attacker connected to the router's LAN and authenticated with a super user account, or using a bypass authentication vulnerability like CVE-2021-20090 could leverage this issue to run commands or gain a shell as root on the target device."
    },
    {
      "lang": "es",
      "value": "Telus Wi-Fi Hub (PRV65B444A-S-TS) con la versión de firmware 3.00.20, está afectado por una vulnerabilidad de inyección de comandos autenticados en múltiples parámetros pasados al archivo tr69_cmd.cgi. Un atacante remoto conectado a la LAN del router y autenticado con una cuenta de superusuario, o usando una vulnerabilidad de omisión autenticación como CVE-2021-20090 podría aprovechar este problema para ejecutar comandos y conseguir un shell como root en el dispositivo de destino"
    }
  ],
  "lastModified": "2026-06-17T03:33:18.527",
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