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CVE-2021-45971

HIGH
8.2

Descripcion

An issue was discovered in SdHostDriver in Insyde InsydeH2O with kernel 5.1 before 05.16.25, 5.2 before 05.26.25, 5.3 before 05.35.25, 5.4 before 05.43.25, and 5.5 before 05.51.25. A vulnerability exists in the SMM (System Management Mode) branch that registers a SWSMI handler that does not sufficiently check or validate the allocated buffer pointer (CommBufferData).

Detalles CVE

Puntuacion CVSS v3.18.2
SeveridadHIGH
Vector CVSSCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Vector de ataqueLOCAL
ComplejidadLOW
Privilegios requeridosHIGH
Interaccion usuarioNONE
Publicado1/6/2022
Ultima modificacion11/4/2025
Fuentenvd
Avistamientos honeypot0

Productos afectados

insyde:insydeh2o

Debilidades (CWE)

CWE-787

Correlaciones IOC

Sin correlaciones registradas

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