High severity7.8NVD Advisory· Published May 12, 2022· Updated Jun 17, 2026
CVE-2021-26317
CVE-2021-26317
Description
Failure to verify the protocol in SMM may allow an attacker to control the protocol and modify SPI flash resulting in a potential arbitrary code execution.
Affected products
3- AMD/Athlon™ Seriesv5Range: various
- AMD/Ryzen™ Seriesv5Range: various
Patches
Vulnerability mechanics
References
1- www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027nvdVendor Advisory
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