# CVE-2022-21882

Win32k Elevation of Privilege Vulnerability

- Page: https://www.vulneraibility.com/cve/CVE-2022-21882
- CVSS: 7.0
- Known exploited: yes, in CISA KEV since 2022-02-04; CISA due date 2022-02-18; known ransomware use
- EPSS: 59.20% (percentile 99.1)
- Public exploit code: 1 Metasploit module · 5 GitHub proofs of concept (first 2022-01-27)
- CISA SSVC: exploitation active, automatable no, technical impact total (assessed 2022-01-10)
- Weakness: CWE-787
- Published: 2022-01-11

## Affected versions

- Microsoft Windows 10 Version 1809: affected >= 10.0.17763.0 and < 10.0.17763.2452; >= 10.0.0 and < 10.0.17763.2452
- Microsoft Windows 10 Version 1909: affected >= 10.0.0 and < 10.0.18363.2037
- Microsoft Windows 10 Version 20H2: affected >= 10.0.0 and < 10.0.19042.1466
- Microsoft Windows 10 Version 21H1: affected >= 10.0.0 and < 10.0.19043.1466
- Microsoft Windows 10 Version 21H2: affected >= 10.0.19043.0 and < 10.0.19044.1466
- Microsoft Windows 11 version 21H2: affected >= 10.0.0 and < 10.0.22000.434
- Microsoft Windows Server 2019: affected >= 10.0.17763.0 and < 10.0.17763.2452
- Microsoft Windows Server 2019 (Server Core installation): affected >= 10.0.17763.0 and < 10.0.17763.2452
- Microsoft Windows Server 2022: affected >= 10.0.20348.0 and < 10.0.20348.469
- Microsoft Windows Server version 20H2: affected >= 10.0.0 and < 10.0.19042.1466

A version outside these ranges is not a statement that it is unaffected.

## References

- [advisory] https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-21882
- [other] https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-21882
- [other] http://packetstormsecurity.com/files/166169/Win32k-ConsoleControl-Offset-Confusion-Privilege-Escalation.html
- [other] https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-21882

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.