cve/2024/CVE-2024-21980.md

### [CVE-2024-21980](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-21980)
![](https://img.shields.io/static/v1?label=Product&message=3rd%20Gen%20AMD%20EPYC%E2%84%A2%20Processors&color=blue)
![](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%207003&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=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-119%20Improper%20Restriction%20of%20Operations%20within%20the%20Bounds%20of%20a%20Memory%20Buffer&color=brighgreen)

### Description

Improper restriction of write operations in SNP firmware could allow a malicious hypervisor to potentially overwrite a guest's memory or UMC seed resulting in loss of confidentiality and integrity.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/Freax13/cve-2024-21980-poc
- https://github.com/nomi-sec/PoC-in-GitHub