### [CVE-2021-21571](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21571)
![](https://img.shields.io/static/v1?label=Product&message=UEFI%20BIOS%20https%20stack&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=Gen%2011%2C%20Gen%2010%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-295%3A%20Improper%20Certificate%20Validation&color=brightgreen)

### Description

Dell UEFI BIOS https stack leveraged by the Dell BIOSConnect feature and Dell HTTPS Boot feature contains an improper certificate validation vulnerability. A remote unauthenticated attacker may exploit this vulnerability using a person-in-the-middle attack which may lead to a denial of service and payload tampering.

### POC

#### Reference
- https://www.dell.com/support/kbdoc/en-us/000188682

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