### [CVE-2021-3970](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3970)
![](https://img.shields.io/static/v1?label=Product&message=Notebook%20BIOS&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=various%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-20%20Improper%20Input%20Validation&color=brightgreen)

### Description

A potential vulnerability in LenovoVariable SMI Handler due to insufficient validation in some Lenovo Notebook models BIOS may allow an attacker with local access and elevated privileges to execute arbitrary code.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/ARPSyndicate/cvemon
- https://github.com/fabiobritez/sc2_x86_protectedmode