How severe is CVE-2022-21882?

CVE-2022-21882 has a CVSS 3.1 base score of 7 (HIGH). EPSS estimates a 59.2% probability of exploitation in the next 30 days. It is listed in the CISA Known Exploited Vulnerabilities catalog.

CVE-2022-21882: Win32k Elevation of Privilege

CISA Known Exploited Vulnerabilities

Microsoft Win32k Privilege Escalation Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV

2022-02-04

Remediation due

2022-02-18

Ransomware

Known use

Required action
Apply updates per vendor instructions.

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

Description

Win32k Elevation of Privilege Vulnerability

Severity

CVSS 3.1 · CNA7 HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

SSVC · CISA-ADP

Exploitationactive

Automatableno

Technical impacttotal

Affected Products

Vendor	Product	Affected versions
Microsoft	Windows 10 Version 1809	10.0.17763.0 to <10.0.17763.2452
Microsoft	Windows 10 Version 1809	10.0.0 to <10.0.17763.2452
Microsoft	Windows Server 2019	10.0.17763.0 to <10.0.17763.2452
Microsoft	Windows Server 2019 (Server Core installation)	10.0.17763.0 to <10.0.17763.2452
Microsoft	Windows 10 Version 1909	10.0.0 to <10.0.18363.2037
Microsoft	Windows 10 Version 21H1	10.0.0 to <10.0.19043.1466
Microsoft	Windows Server 2022	10.0.20348.0 to <10.0.20348.469
Microsoft	Windows 10 Version 20H2	10.0.0 to <10.0.19042.1466
Microsoft	Windows Server version 20H2	10.0.0 to <10.0.19042.1466
Microsoft	Windows 11 version 21H2	10.0.0 to <10.0.22000.434
Microsoft	Windows 10 Version 21H2	10.0.19043.0 to <10.0.19044.1466

References

3 Links

Vendor advisories

Win32k Elevation of Privilege Vulnerability

Other references

Record Details

Published

2022-01-11

Last updated

2026-08-15

Assigner (CNA)

microsoft

Credited to

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CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.