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CVE-2020-12834

Estado: ModificadaCrítica (9.8)—

eQ-3 Homematic Central Control Unit (CCU)2 through 2.51.6 and CCU3 through 3.51.6 allow Remote Code Execution in the JSON API Method ReGa.runScript, by unauthenticated attackers with access to the web interface, due to the default auto-login feature being enabled during first-time setup (or factory reset).

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)

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2020-12834",
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        "source": "nvd@nist.gov",
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          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
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  "affected": [
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      "source": "cve@mitre.org",
      "affectedData": [
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          "vendor": "n/a",
          "product": "n/a",
          "versions": [
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              "status": "affected",
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  "published": "2020-05-15T17:15:12.500",
  "references": [
    {
      "url": "https://psytester.github.io/CVE-2020-12834/",
      "tags": [
        "Exploit",
        "Third Party Advisory"
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    {
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      "description": [
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          "lang": "en",
          "value": "CWE-276"
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      "value": "eQ-3 Homematic Central Control Unit (CCU)2 through 2.51.6 and CCU3 through 3.51.6 allow Remote Code Execution in the JSON API Method ReGa.runScript, by unauthenticated attackers with access to the web interface, due to the default auto-login feature being enabled during first-time setup (or factory reset)."
    },
    {
      "lang": "es",
      "value": "eQ-3 Homematic Central Control Unit (CCU)2 versiones hasta 2.51.6 y la CCU3 versiones hasta 3.51.6, permiten una ejecución de código remota en el JSON API Method ReGa.runScript, por parte de atacantes no autenticados con acceso a la interfaz web, debido a que la funcionalidad auto-login predeterminada está activada durante la configuración por primera vez (o el restablecimiento de fábrica)."
    }
  ],
  "lastModified": "2026-06-17T02:52:23.880",
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