CVE-2022-21882

Win32k Elevation of Privilege Vulnerability

HIGH

7.8

CVSS Score

Published: January 11, 2022 at 08:22 PM UTC

Updated: August 15, 2026 at 04:35 AM UTC

9 products affected across 1 vendorWindows Server 2019Windows 10 1809Windows Server 2022

Using Windows 10 Version 1809 by Microsoft?

Get instant alerts when new vulnerabilities affect Windows 10 Version 1809 - before attackers find them.

Real-time alertsTrack your software stackFree plan available

Start Free Sign In

Severity

HIGH7.8

Exploitation

CISA KEV

Exploit prediction

EPSS 59%

SSVC

Active

Actively Exploited

CISA Known Exploited Vulnerabilities (KEV) Catalog

EPSS Score59.2%

EPSS (Exploit Prediction Scoring System) estimates a 59.2% chance this CVE is exploited in the wild within the next 30 days — higher than 99% of all CVEs. It complements CVSS: a high EPSS on a mid-severity CVE can still be urgent.

Microsoft Win32k contains an unspecified vulnerability that allows for privilege escalation.

Required Action

Apply updates per vendor instructions.

Ransomware Use

Known

Added to KEV

Feb 4, 2022

Remediation Due

Feb 18, 2022

1714 days overdue

Notes

https://nvd.nist.gov/vuln/detail/CVE-2022-21882

Description

Win32k Elevation of Privilege Vulnerability

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Windows 10 1809 · Microsoft

95%

v < 10.0.17763.245210.0.0 ≤ v < 10.0.17763.245210.0.17763.0 ≤ v < 10.0.17763.245210.0.0 10.0.17763.0

Affected range stops below 10.0.17763.2452, so it looks safe — our inference, not a vendor statement

Windows 10 1909 · Microsoft

95%

v < 10.0.18363.203710.0.0 ≤ v < 10.0.18363.203710.0.0

Affected range stops below 10.0.18363.2037, so it looks safe — our inference, not a vendor statement

Windows 10 20H2 · Microsoft

95%

v < 10.0.19042.146610.0.0 ≤ v < 10.0.19042.146610.0.0

Affected range stops below 10.0.19042.1466, so it looks safe — our inference, not a vendor statement

Windows 10 21H1 · Microsoft

95%

v < 10.0.19043.146610.0.0 ≤ v < 10.0.19043.146610.0.0

Affected range stops below 10.0.19043.1466, so it looks safe — our inference, not a vendor statement

Windows 10 21H2 · Microsoft

95%

v < 10.0.19044.146610.0.19043.0 ≤ v < 10.0.19044.146610.0.19043.0

Affected range stops below 10.0.19044.1466, so it looks safe — our inference, not a vendor statement

Windows 11 21H2 · Microsoft

95%

v < 10.0.22000.43410.0.0 ≤ v < 10.0.22000.43410.0.0

Affected range stops below 10.0.22000.434, so it looks safe — our inference, not a vendor statement

Windows Server 2019 · Microsoft

95%

v < 10.0.17763.245210.0.17763.0 ≤ v < 10.0.17763.245210.0.17763.0

Affected range stops below 10.0.17763.2452, so it looks safe — our inference, not a vendor statement

Windows Server 2022 · Microsoft

95%

v < 10.0.20348.46910.0.20348.0 ≤ v < 10.0.20348.46910.0.20348.0

Affected range stops below 10.0.20348.469, so it looks safe — our inference, not a vendor statement

Windows Server 20H2 · Microsoft

95%

v < 10.0.19042.146610.0.0 ≤ v < 10.0.19042.146610.0.0

Affected range stops below 10.0.19042.1466, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (4)

Vendor AdvisoryPatch

Source: [email protected]

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-21882

Third Party AdvisoryVDB Entry

Source: af854a3a-2127-422b-91ae-364da2661108

http://packetstormsecurity.com/files/166169/Win32k-ConsoleControl-Offset-Confusion-Privilege-Escalation.html

PatchVendor Advisory

Source: af854a3a-2127-422b-91ae-364da2661108

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-21882

US Government Resource

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-21882

SSVC — Action Prioritization

SSVCActiveNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGH[email protected]

Attack Vector: LOCAL
Complexity: LOW
Privileges: LOW
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusANALYZED

CWE

CWE-787

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create account Sign in

Free plan, no card