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CVE-2021-20855

Estado: ModificadaMedia (5.4)—

Cross-site scripting vulnerability in ELECOM LAN routers (WRH-733GBK firmware v1.02.9 and prior and WRH-733GWH firmware v1.02.9 and prior) allows a remote authenticated attacker to inject an arbitrary script via unspecified vectors.

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 (2)

Elecom — Wrh-733gbk FirmwareElecom — Wrh-733gwh Firmware

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2021-20855",
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          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N",
          "authentication": "SINGLE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
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      "affectedData": [
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          "vendor": "ELECOM CO.,LTD.",
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  "published": "2021-12-01T03:15:06.850",
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          "value": "CWE-79"
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      "lang": "en",
      "value": "Cross-site scripting vulnerability in ELECOM LAN routers (WRH-733GBK firmware v1.02.9 and prior and WRH-733GWH firmware v1.02.9 and prior) allows a remote authenticated attacker to inject an arbitrary script via unspecified vectors."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de tipo cross-site scripting en los routers LAN de ELECOM (firmware WRH-733GBK versiones v1.02.9 y anteriores y firmware WRH-733GWH versiones v1.02.9 y anteriores) permite a un atacante remoto autenticado inyectar un script arbitrario por medio de vectores no especificados"
    }
  ],
  "lastModified": "2026-06-17T03:34:32.857",
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