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CVE-2021-20149

Estado: ModificadaCrítica (9.8)—

Trendnet AC2600 TEW-827DRU version 2.08B01 does not have sufficient access controls for the WAN interface. The default iptables ruleset for governing access to services on the device only apply to IPv4. All services running on the devices are accessible via the WAN interface via IPv6 by default.

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)

Trendnet — Tew-827dru Firmware

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-20149",
  "cveTags": [],
  "metrics": {
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      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
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          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/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,
        "exploitabilityScore": 3.9
      }
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  },
  "affected": [
    {
      "source": "vulnreport@tenable.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "Trendnet AC2600 TEW-827DRU",
          "versions": [
            {
              "status": "affected",
              "version": "2.08B01"
            }
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  ],
  "published": "2021-12-30T22:15:08.580",
  "references": [
    {
      "url": "https://www.tenable.com/security/research/tra-2021-54",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "vulnreport@tenable.com"
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      "tags": [
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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-863"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Trendnet AC2600 TEW-827DRU version 2.08B01 does not have sufficient access controls for the WAN interface. The default iptables ruleset for governing access to services on the device only apply to IPv4. All services running on the devices are accessible via the WAN interface via IPv6 by default."
    },
    {
      "lang": "es",
      "value": "Trendnet AC2600 TEW-827DRU versión 2.08B01, no presenta suficientes controles de acceso para la interfaz WAN. El conjunto de reglas iptables por defecto para gobernar el acceso a los servicios en el dispositivo sólo se aplica a IPv4. Todos los servicios que son ejecutados en los dispositivos son accesibles por medio de la interfaz WAN por medio de IPv6 por defecto.\n"
    }
  ],
  "lastModified": "2026-06-17T03:33:21.357",
  "configurations": [
    {
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  "sourceIdentifier": "vulnreport@tenable.com"
}