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CVE-2023-27471

Estado: ModificadaMedia (5.5)—

An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. UEFI implementations do not correctly protect and validate information contained in the 'MeSetup' UEFI variable. On some systems, this variable can be overwritten using operating system APIs. Exploitation of this vulnerability could potentially lead to denial of service for the platform.

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)

Insyde — Insydeh2o

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2023-27471",
  "cveTags": [],
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          "id": "CVE-2023-27471",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
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          "version": "2.0.3",
          "timestamp": "2024-10-07T19:45:13.067182Z"
        }
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    "cvssMetricV31": [
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          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
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        "impactScore": 3.6,
        "exploitabilityScore": 1.8
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  "affected": [
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      "affectedData": [
        {
          "vendor": "n/a",
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  "published": "2023-08-18T19:15:12.243",
  "references": [
    {
      "url": "https://www.insyde.com/security-pledge/SA-2023036",
      "tags": [
        "Vendor Advisory"
      ],
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    {
      "url": "https://www.insyde.com/security-pledge/SA-2023036",
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      "value": "An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. UEFI implementations do not correctly protect and validate information contained in the 'MeSetup' UEFI variable. On some systems, this variable can be overwritten using operating system APIs. Exploitation of this vulnerability could potentially lead to denial of service for the platform."
    },
    {
      "lang": "es",
      "value": "Se descubrió un problema en Insyde InsydeH2O con kernel 5.0 a 5.5. Las implementaciones UEFI no protegen ni validan correctamente la información contenida en la variable UEFI \"MeSetup\". En algunos sistemas, esta variable puede sobrescribirse utilizando las API del sistema operativo. La explotación de esta vulnerabilidad podría conducir potencialmente a la denegación de servicio de la plataforma.  "
    }
  ],
  "lastModified": "2026-06-17T05:45:16.760",
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