Read the docs
TI-2022-06249 Aliases CVE-2022-21882GHSA-m3vx-53cf-jqv4

Win32k Elevation of Privilege Vulnerability

Priority CRITICAL 93Exploited in the wildCWE-787Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Privilege escalation
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Microsoft. Impact type from Microsoft.

Summary

Win32k Elevation of Privilege Vulnerability

Why it matters now

Exploitation Active In CISA KEV since 2022-02-04CISA due date 2022-02-18Known ransomware use
EPSS 0.59205 99th percentileScored 2026-11-07
Fix Fixed Microsoft: 5 updates

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Active
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftWindows 10 Version 180910.0.17763.0 to before 10.0.17763.245210.0.17763.2452Patch availableCNA
MicrosoftWindows 10 Version 180910.0.0 to before 10.0.17763.245210.0.17763.2452Patch availableCNA
MicrosoftWindows Server 201910.0.17763.0 to before 10.0.17763.245210.0.17763.2452Patch availableCNA
MicrosoftWindows Server 2019 (Server Core installation)10.0.17763.0 to before 10.0.17763.245210.0.17763.2452Patch availableCNA
MicrosoftWindows 10 Version 190910.0.0 to before 10.0.18363.203710.0.18363.2037Patch availableCNA
MicrosoftWindows 10 Version 21H110.0.0 to before 10.0.19043.146610.0.19043.1466Patch availableCNA
MicrosoftWindows Server 202210.0.20348.0 to before 10.0.20348.46910.0.20348.469Patch availableCNA
MicrosoftWindows 10 Version 20H210.0.0 to before 10.0.19042.146610.0.19042.1466Patch availableCNA
MicrosoftWindows Server version 20H210.0.0 to before 10.0.19042.146610.0.19042.1466Patch availableCNA
MicrosoftWindows 11 version 21H210.0.0 to before 10.0.22000.43410.0.22000.434Patch availableCNA
MicrosoftWindows 10 Version 21H210.0.19043.0 to before 10.0.19044.146610.0.19044.1466Patch availableCNA
  • Windows 10 Version 1809 VendorMicrosoft Affected 10.0.17763.0 to before 10.0.17763.2452 Fixed in 10.0.17763.2452 Patch available CNA
  • Windows 10 Version 1809 VendorMicrosoft Affected 10.0.0 to before 10.0.17763.2452 Fixed in 10.0.17763.2452 Patch available CNA
  • Windows Server 2019 VendorMicrosoft Affected 10.0.17763.0 to before 10.0.17763.2452 Fixed in 10.0.17763.2452 Patch available CNA
  • Windows Server 2019 (Server Core installation) VendorMicrosoft Affected 10.0.17763.0 to before 10.0.17763.2452 Fixed in 10.0.17763.2452 Patch available CNA
  • Windows 10 Version 1909 VendorMicrosoft Affected 10.0.0 to before 10.0.18363.2037 Fixed in 10.0.18363.2037 Patch available CNA
  • Windows 10 Version 21H1 VendorMicrosoft Affected 10.0.0 to before 10.0.19043.1466 Fixed in 10.0.19043.1466 Patch available CNA
  • Windows Server 2022 VendorMicrosoft Affected 10.0.20348.0 to before 10.0.20348.469 Fixed in 10.0.20348.469 Patch available CNA
  • Windows 10 Version 20H2 VendorMicrosoft Affected 10.0.0 to before 10.0.19042.1466 Fixed in 10.0.19042.1466 Patch available CNA
  • Windows Server version 20H2 VendorMicrosoft Affected 10.0.0 to before 10.0.19042.1466 Fixed in 10.0.19042.1466 Patch available CNA
  • Windows 11 version 21H2 VendorMicrosoft Affected 10.0.0 to before 10.0.22000.434 Fixed in 10.0.22000.434 Patch available CNA
  • Windows 10 Version 21H2 VendorMicrosoft Affected 10.0.19043.0 to before 10.0.19044.1466 Fixed in 10.0.19044.1466 Patch available CNA

CPE configurations NVD · 10

CPEVersionsRoleVendor
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*before 10.0.17763.2452VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*before 10.0.17763.2452VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_10_1909:*:*:*:*:*:*:*:*before 10.0.18363.2037VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_10_20h2:*:*:*:*:*:*:*:*before 10.0.19042.1466VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_10_21h1:*:*:*:*:*:*:*:*before 10.0.19043.1466VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:*:*before 10.0.19044.1466VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:*:*before 10.0.22000.434VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*before 10.0.17763.2452VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*before 10.0.20348.469VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_server_20h2:*:*:*:*:*:*:*:*before 10.0.19042.1466VulnerableMicrosoft
  • cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:* Versions before 10.0.17763.2452 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:* Versions before 10.0.17763.2452 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_10_1909:*:*:*:*:*:*:*:* Versions before 10.0.18363.2037 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_10_20h2:*:*:*:*:*:*:*:* Versions before 10.0.19042.1466 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_10_21h1:*:*:*:*:*:*:*:* Versions before 10.0.19043.1466 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:*:* Versions before 10.0.19044.1466 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:*:* Versions before 10.0.22000.434 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:* Versions before 10.0.17763.2452 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:* Versions before 10.0.20348.469 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_20h2:*:*:*:*:*:*:*:* Versions before 10.0.19042.1466 Vulnerable ·Microsoft

Remediation

Microsoft 5 updates

  • KB5009566
    Security Update
    • Windows 11 version 21H2 for ARM64-based Systems 10.0.22000.434
    • Windows 11 version 21H2 for x64-based Systems 10.0.22000.434
  • KB5009557
    Security Update
    • Windows 10 Version 1809 for 32-bit Systems 10.0.17763.2452
    • Windows 10 Version 1809 for ARM64-based Systems 10.0.17763.2452
    • Windows 10 Version 1809 for x64-based Systems 10.0.17763.2452
    • Windows Server 2019 10.0.17763.2452
    • Windows Server 2019 (Server Core installation) 10.0.17763.2452
  • KB5009555
    Security Update
    • Windows Server 2022 10.0.20348.469
    • Windows Server 2022 (Server Core installation) 10.0.20348.469
Show 2 more Microsoft updates
  • KB5009545
    Security Update
    • Windows 10 Version 1909 for 32-bit Systems 10.0.18363.2037
    • Windows 10 Version 1909 for ARM64-based Systems 10.0.18363.2037
    • Windows 10 Version 1909 for x64-based Systems 10.0.18363.2037
  • KB5009543
    Security Update
    • Windows 10 Version 20H2 for 32-bit Systems 10.0.19042.1466, 10.0.19042.1526
    • Windows 10 Version 20H2 for ARM64-based Systems 10.0.19042.1466, 10.0.19042.1526
    • Windows 10 Version 21H1 for 32-bit Systems 10.0.19043.1466
    • Windows 10 Version 21H1 for ARM64-based Systems 10.0.19043.1466
    • Windows 10 Version 21H1 for x64-based Systems 10.0.19043.1466
    • Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.1466, 10.0.19043.1466
    • Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.1466
    • Windows 10 Version 21H2 for x64-based Systems 10.0.19044.1466
    • Windows Server, version 20H2 (Server Core Installation) 10.0.19042.1466, 10.0.19042.1526

Vendor assessments

Microsoft

Microsoft's page for this CVE →

Impact
Elevation of Privilege
Exploited
Yes
Publicly disclosed
No
Exploitability
Exploitation More Likely

Timeline

  1. 2022-02-04 Added to CISA KEV
  2. 2026-10-02 Threatist record created from CVE-2022-21882
  3. 2026-10-03 Alias added: GHSA-m3vx-53cf-jqv4

References

Patch 2

Advisory 1

  • TI-2026-26194 Windows Internet Key Exchange (IKE) Service Extensions Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-73128 Windows Shell Security Feature Bypass Vulnerability KEVCVSS 3.1HIGH 8.8
  • TI-2026-17367 MSHTML Framework Security Feature Bypass Vulnerability KEVCVSS 3.1HIGH 8.8
  • TI-2026-17364 Windows Shell Security Feature Bypass Vulnerability KEVCVSS 3.1HIGH 8.8
  • TI-2025-24062 Windows SMB Client Elevation of Privilege Vulnerability KEVCVSS 3.1HIGH 8.8
  • TI-2025-24042 Internet Shortcut Files Remote Code Execution Vulnerability KEVCVSS 3.1HIGH 8.8
See all 4016 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences