Security Advisory

CVE-2021-45971

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2022-01-05 23:09:47

Last updated 2025-11-04 19:12:49

Assigner mitre

State PUBLISHED

Description

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).

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