cve/2021/CVE-2021-26863.md

### [CVE-2021-26863](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26863)
![](https://img.shields.io/static/v1?label=Product&message=Windows%2010%20Version%201803&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=Windows%2010%20Version%201809&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=Windows%2010%20Version%201909&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=Windows%2010%20Version%202004&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=Windows%2010%20Version%2020H2&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=Windows%20Server%202019%20(Server%20Core%20installation)&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=Windows%20Server%202019&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=Windows%20Server%20version%202004&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=Windows%20Server%20version%2020H2&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=Windows%20Server%2C%20version%201909%20(Server%20Core%20installation)&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=10.0.0%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Elevation%20of%20Privilege&color=brightgreen)

### Description

Windows Win32k Elevation of Privilege Vulnerability

### POC

#### Reference
- http://packetstormsecurity.com/files/161768/Microsoft-Windows-Kernel-NtGdiGetDeviceCapsAll-Race-Condition-Use-After-Free.html

#### Github
- https://github.com/ARPSyndicate/cvemon
- https://github.com/nomi-sec/PoC-in-GitHub