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CVE-2021-41842

Estado: ModificadaCrítica (9.8)—

An issue was discovered in AtaLegacySmm in the kernel 5.0 before 05.08.46, 5.1 before 05.16.46, 5.2 before 05.26.46, 5.3 before 05.35.46, 5.4 before 05.43.46, and 5.5 before 05.51.45 in Insyde InsydeH2O. Code execution can occur because the SMI handler lacks a CommBuffer check.

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-2021-41842",
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          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
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          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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  "published": "2022-01-06T00:15:07.860",
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      "value": "An issue was discovered in AtaLegacySmm in the kernel 5.0 before 05.08.46, 5.1 before 05.16.46, 5.2 before 05.26.46, 5.3 before 05.35.46, 5.4 before 05.43.46, and 5.5 before 05.51.45 in Insyde InsydeH2O. Code execution can occur because the SMI handler lacks a CommBuffer check."
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      "value": "Se ha detectado un problema en AtaLegacySmm en el kernel 5.0 anteriores a 05.08.46, 5.1 anteriores a 05.16.46, 5.2 anteriores a 05.26.46, 5.3 anteriores a 05.35.46, 5.4 anteriores a 05.43.46 y 5.5 anteriores a 05.51.45 en InsydeH2O. Puede producirse una ejecución de código porque el manejador SMI carece de una comprobación de CommBuffer."
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  "lastModified": "2026-06-17T04:09:00.247",
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