CVEs-PoC/2021/CVE-2021-46766.md

### [CVE-2021-46766](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-46766)
![](https://img.shields.io/static/v1?label=Product&message=4th%20Gen%20AMD%20EPYC%E2%84%A2%20Processors&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=AMD%20EPYC%E2%84%A2%20Embedded%209003&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=Ryzen%E2%84%A2%20Threadripper%E2%84%A2%20PRO%203000WX%20Series%20Processors%20%20%E2%80%9CChagall%E2%80%9D%20WS&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=various%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=blue)

### Description

Improper clearing of sensitive data in the ASP Bootloader may expose secret keys to a privileged attacker accessing ASP SRAM, potentially leading to a loss of confidentiality.

### POC

#### Reference
- https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-3002
- https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-4002
- https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-5001

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