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CVE-2024-52879

Estado: AnalizadaAlta (7.5)—

An issue was discovered in Insyde InsydeH2O kernel 5.2 before version 05.29.50, kernel 5.3 before version 05.38.50, kernel 5.4 before version 05.46.50, kernel 5.5 before version 05.54.50, kernel 5.6 before version 05.61.50, and kernel 5.7 before version 05.70.50. In VariableRuntimeDxe driver, SmmUpdateVariablePropertySmi () is a SMM callback function and it uses StrCmp () to compare variable names. This action may cause a buffer over-read.

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

AV:N/AC:L/PR:N indica explotación remota sin privilegios (T1190). Buffer over-read en SMM permite leer memoria del kernel (T1005), confirmado por C:H en CVSS.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Vulnerability ScanningPrivileged Account ManagementNetwork SegmentationLimit Access to Resource Over NetworkFilter Network TrafficApplication Isolation and Sandboxing

Tecnologías afectadas (1)

Insyde — Insydeh2o

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2024-52879",
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          "role": "CISA Coordinator",
          "options": [
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              "exploitation": "none"
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              "automatable": "no"
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              "technicalImpact": "partial"
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          "version": "2.0.3",
          "timestamp": "2025-05-19T20:03:18.497548Z"
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
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          "privilegesRequired": "NONE",
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  "published": "2025-05-15T16:15:33.013",
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      "url": "https://www.insyde.com/security-pledge",
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      "value": "An issue was discovered in Insyde InsydeH2O kernel 5.2 before version 05.29.50, kernel 5.3 before version 05.38.50, kernel 5.4 before version 05.46.50, kernel 5.5 before version 05.54.50, kernel 5.6 before version 05.61.50, and kernel 5.7 before version 05.70.50. In VariableRuntimeDxe driver, SmmUpdateVariablePropertySmi () is a SMM callback function and it uses StrCmp () to compare variable names. This action may cause a buffer over-read."
    },
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      "value": "Se detectó un problema en Insyde InsydeH2O con kernel 5.2 anterior a la versión 05.29.50, kernel 5.3 anterior a la versión 05.38.50, kernel 5.4 anterior a la versión 05.46.50, kernel 5.5 anterior a la versión 05.54.50, kernel 5.6 anterior a la versión 05.61.50 y kernel 5.7 anterior a la versión 05.70.50. En el controlador VariableRuntimeDxe, SmmUpdateVariablePropertySmi() es una función de devolución de llamada de SMM que utiliza StrCmp() para comparar nombres de variables. Esta acción puede provocar una sobrelectura del búfer."
    }
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  "lastModified": "2026-06-17T08:07:47.627",
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