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CVE-2021-23147

Estado: ModificadaMedia (6.8)—

Netgear Nighthawk R6700 version 1.0.4.120 does not have sufficient protections for the UART console. A malicious actor with physical access to the device is able to connect to the UART port via a serial connection and execute commands as the root user without authentication.

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)

Netgear — R6700 Firmware

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2021-23147",
  "cveTags": [],
  "metrics": {
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.2,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
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        "acInsufInfo": false,
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        "obtainAllPrivilege": false,
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          "attackVector": "PHYSICAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
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        "impactScore": 5.9,
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  "affected": [
    {
      "source": "vulnreport@tenable.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "Netgear Nighthawk R6700",
          "versions": [
            {
              "status": "affected",
              "version": "1.0.4.120"
            }
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  ],
  "published": "2021-12-30T22:15:09.903",
  "references": [
    {
      "url": "https://www.tenable.com/security/research/tra-2021-57",
      "tags": [
        "Third Party Advisory"
      ],
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    },
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-287"
        }
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  "descriptions": [
    {
      "lang": "en",
      "value": "Netgear Nighthawk R6700 version 1.0.4.120 does not have sufficient protections for the UART console. A malicious actor with physical access to the device is able to connect to the UART port via a serial connection and execute commands as the root user without authentication."
    },
    {
      "lang": "es",
      "value": "Netgear Nighthawk R6700 versión 1.0.4.120, no presenta suficientes protecciones para la consola UART. Un actor malicioso con acceso físico al dispositivo puede conectarse al puerto UART por medio de una conexión serie y ejecutar comandos como usuario root sin autenticación."
    }
  ],
  "lastModified": "2026-06-17T03:38:20.567",
  "configurations": [
    {
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  "sourceIdentifier": "vulnreport@tenable.com"
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