cve/2021/CVE-2021-1757.md

### [CVE-2021-1757](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1757)
![](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=unspecified%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=A%20local%20attacker%20may%20be%20able%20to%20elevate%20their%20privileges&color=brightgreen)

### Description

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4 and iPadOS 14.4. A local attacker may be able to elevate their privileges.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/b1n4r1b01/n-days
- https://github.com/houjingyi233/macOS-iOS-system-security