---
id: CVE-2021-1732
title: Windows Win32k Elevation of Privilege Vulnerability
summary: Windows Win32k Elevation of Privilege Vulnerability
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-787
  - CWE-787
vendor: microsoft
product: windows_10_1803
affected:
  - windows_10_1803
  - windows_10_1809
  - windows_10_1909
  - windows_10_2004
  - windows_10_20h2
  - windows_server_1909
  - windows_server_2004
  - windows_server_2019
  - windows_server_20h2
published: '2021-02-25'
updated: '2026-08-12'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2021-1732'
references:
  - url: >-
      http://packetstormsecurity.com/files/161880/Win32k-ConsoleControl-Offset-Confusion.html
    label: secure@microsoft.com
  - url: >-
      http://packetstormsecurity.com/files/166169/Win32k-ConsoleControl-Offset-Confusion-Privilege-Escalation.html
    label: secure@microsoft.com
  - url: >-
      https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1732
    label: secure@microsoft.com
  - url: >-
      http://packetstormsecurity.com/files/161880/Win32k-ConsoleControl-Offset-Confusion.html
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      http://packetstormsecurity.com/files/166169/Win32k-ConsoleControl-Offset-Confusion-Privilege-Escalation.html
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1732
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-1732
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - kev
  - in-the-wild
  - exploit-available
epss: 0.78376
epssPercentile: 0.99569
kev: true
kevDateAdded: '2021-11-03'
kevDueDate: '2021-11-17'
kevRansomware: true
exploited: true
zeroDay: true
ingestedAt: '2026-08-12T19:54:25.608Z'
exploits:
  github: 13
  githubRepos:
    - 'https://github.com/KaLendsi/CVE-2021-1732-Exploit'
    - 'https://github.com/flyinbedxyz/CVE-2021-1732'
    - 'https://github.com/oneoy/CVE-2021-1732-Exploit'
  metasploit:
    - exploit/windows/local/cve_2022_21882_win32k
  checkedAt: '2026-09-25T08:20:37.822Z'
exploitAvailable: true
---

## Overview

Windows Win32k Elevation of Privilege Vulnerability

## Affected

- `windows_10_1803`
- `windows_10_1809`
- `windows_10_1909`
- `windows_10_2004`
- `windows_10_20h2`
- `windows_server_1909`
- `windows_server_2004`
- `windows_server_2019`
- `windows_server_20h2`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.