cve/2021/CVE-2021-30740.md

### [CVE-2021-30740](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30740)
![](https://img.shields.io/static/v1?label=Product&message=iOS%20and%20iPadOS&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=macOS&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=%3C%2011.4%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Version&message=%3C%2014.6%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Version&message=%3C%207.5%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=A%20malicious%20application%20may%20be%20able%20to%20execute%20arbitrary%20code%20with%20kernel%20privileges&color=brighgreen)

### Description

A logic issue was addressed with improved validation. This issue is fixed in macOS Big Sur 11.4, tvOS 14.6, watchOS 7.5, iOS 14.6 and iPadOS 14.6. A malicious application may be able to execute arbitrary code with kernel privileges.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/Abdulhadi21/fugu14
- https://github.com/Abdulhadi21/https-github.com-LinusHenze-Fugu14
- https://github.com/LinusHenze/Fugu14
- https://github.com/epeth0mus/Fugu16
- https://github.com/evilcorp1311/kkkk
- https://github.com/gfam2801/fugu14-online
- https://github.com/houjingyi233/macOS-iOS-system-security
- https://github.com/nanerasingh/fugu14