Security Advisory

CVE-2021-33626

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2021-10-01 02:21:29

Last updated 2025-11-04 19:12:30

Assigner mitre

State PUBLISHED

Description

A vulnerability exists in SMM (System Management Mode) branch that registers a SWSMI handler that does not sufficiently check or validate the allocated buffer pointer(QWORD values for CommBuffer). This can be used by an attacker to corrupt data in SMRAM memory and even lead to arbitrary code execution.

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