---
id: CVE-2022-21882
title: Win32k Elevation of Privilege Vulnerability
summary: Win32k Elevation of Privilege Vulnerability
severity: high
cvss: 7
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-787
  - CWE-787
vendor: microsoft
product: windows_10_1809
affected:
  - windows_10_1809 < 10.0.17763.2452
  - windows_10_1909 < 10.0.18363.2037
  - windows_10_20h2 < 10.0.19042.1466
  - windows_10_21h1 < 10.0.19043.1466
  - windows_10_21h2 < 10.0.19044.1466
  - windows_11_21h2 < 10.0.22000.434
  - windows_server_2019 < 10.0.17763.2452
  - windows_server_2022 < 10.0.20348.469
  - windows_server_20h2 < 10.0.19042.1466
patched:
  - windows_10_1809 10.0.17763.2452
  - windows_10_1909 10.0.18363.2037
  - windows_10_20h2 10.0.19042.1466
  - windows_10_21h1 10.0.19043.1466
  - windows_10_21h2 10.0.19044.1466
  - windows_11_21h2 10.0.22000.434
  - windows_server_2019 10.0.17763.2452
  - windows_server_2022 10.0.20348.469
  - windows_server_20h2 10.0.19042.1466
published: '2022-01-11'
updated: '2026-08-15'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2022-21882'
references:
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-21882'
    label: secure@microsoft.com
  - 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-2022-21882
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-21882
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - kev
  - in-the-wild
  - exploit-available
epss: 0.59205
epssPercentile: 0.99086
kev: true
kevDateAdded: '2022-02-04'
kevDueDate: '2022-02-18'
kevRansomware: true
exploited: true
zeroDay: true
ingestedAt: '2026-08-15T04:24:40.675Z'
exploits:
  github: 5
  githubRepos:
    - 'https://github.com/KaLendsi/CVE-2022-21882'
    - 'https://github.com/David-Honisch/CVE-2022-21882'
    - 'https://github.com/L4ys/CVE-2022-21882'
  metasploit:
    - exploit/windows/local/cve_2022_21882_win32k
  checkedAt: '2026-09-25T08:20:40.260Z'
exploitAvailable: true
---

## Overview

Win32k Elevation of Privilege Vulnerability

## Affected

- `windows_10_1809 < 10.0.17763.2452`
- `windows_10_1909 < 10.0.18363.2037`
- `windows_10_20h2 < 10.0.19042.1466`
- `windows_10_21h1 < 10.0.19043.1466`
- `windows_10_21h2 < 10.0.19044.1466`
- `windows_11_21h2 < 10.0.22000.434`
- `windows_server_2019 < 10.0.17763.2452`
- `windows_server_2022 < 10.0.20348.469`
- `windows_server_20h2 < 10.0.19042.1466`

## Remediation

Upgrade past the affected range:

- `windows_10_1809 10.0.17763.2452`
- `windows_10_1909 10.0.18363.2037`
- `windows_10_20h2 10.0.19042.1466`
- `windows_10_21h1 10.0.19043.1466`
- `windows_10_21h2 10.0.19044.1466`
- `windows_11_21h2 10.0.22000.434`
- `windows_server_2019 10.0.17763.2452`
- `windows_server_2022 10.0.20348.469`
- `windows_server_20h2 10.0.19042.1466`