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CVE-2022-36338

Estado: ModificadaAlta (8.2)—

An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. An SMM callout vulnerability in the SMM driver FwBlockServiceSmm, creating SMM, leads to arbitrary code execution. An attacker can replace the pointer to the UEFI boot service GetVariable with a pointer to malware, and then generate a software SMI.

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-2022-36338",
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          "options": [
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              "automatable": "no"
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          "version": "2.0.3",
          "timestamp": "2025-04-23T13:29:31.997850Z"
        }
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "value": "An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. An SMM callout vulnerability in the SMM driver FwBlockServiceSmm, creating SMM, leads to arbitrary code execution. An attacker can replace the pointer to the UEFI boot service GetVariable with a pointer to malware, and then generate a software SMI."
    },
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      "value": "Se ha detectado un problema en InsydeH2O con el kernel 5.0 hasta 5.5. Una vulnerabilidad de llamada SMM en el controlador SMM FwBlockServiceSmm, que crea SMM, conlleva a una ejecución de código arbitrario. Un atacante puede reemplazar el puntero al servicio de arranque UEFI GetVariable con un puntero a un software malicioso, y luego generar un SMI de software."
    }
  ],
  "lastModified": "2026-06-17T04:53:16.823",
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