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High · 7.8 CVE-2021-26316 EUVD-2021-13122GHSA-hr2h-gpm8-8hqc

Failure to validate the communication buffer and communication service in the BIOS may allow an attacker to tamper with the buffer resultin…

Published Jan 10, 2023 · Updated Apr 9, 2025 · Assigned by AMD

Description

Failure to validate the communication buffer and communication service in the BIOS may allow an attacker to tamper with the buffer resulting in potential SMM (System Management Mode) arbitrary code execution.

Affected products

VendorProductAffectedFixed
AMD Ryzen 5000 Series various —
AMD Ryzen 2000 Series various —
AMD Ryzen 3000 Series various —
AMD 1st Gen EPYC various —
AMD 2nd Gen EPYC Various —
AMD 3rd Gen EPYC various —

Advisories 1

References