CVEs-PoC/2021/CVE-2021-26316.md

### [CVE-2021-26316](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26316)
![](https://img.shields.io/static/v1?label=Product&message=1st%20Gen%20EPYC%20&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=2nd%20Gen%20EPYC&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=3rd%20Gen%20EPYC&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=Ryzen%202000%20Series&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=Ryzen%203000%20Series&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=Ryzen%205000%20Series%20&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=Various%20%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=various%20%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brightgreen)

### 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.

### POC

#### Reference
- https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1031
- https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1032

#### Github
No PoCs found on GitHub currently.