CVE-2023-20578

A TOCTOU (Time-Of-Check-Time-Of-Use) in SMM may allow an attacker with ring0 privileges and access to the BIOS menu or UEFI shell to modify the communications buffer potentially resulting in arbitrary code execution.

Score
CVSS 3.1 7.5 High
Status
Modified - psirt@amd.com
Published
2024-08-13
Last modified
2025-03-18
Weaknesses
CWE-367

Affected products

References

 
 
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