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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Affected Vendors & Products
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Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
No history.

Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2024-08-03T23:58:21.523Z
Reserved: 2021-05-28T00:00:00
Link: CVE-2021-33626

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Status : Modified
Published: 2021-10-01T03:15:06.593
Modified: 2024-11-21T06:09:13.410
Link: CVE-2021-33626

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