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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.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Amd
Products
Epyc 7001 Epyc 7001 Firmware Epyc 7002 and 215 more