# CVE-2021-41357

Win32k Elevation of Privilege Vulnerability

- Page: https://www.vulneraibility.com/cve/CVE-2021-41357
- CVSS: 7.8
- Known exploited: yes, in CISA KEV since 2022-04-25; CISA due date 2022-05-16
- EPSS: 1.52% (percentile 75.0)
- CISA SSVC: exploitation active, automatable no, technical impact total (assessed 2024-06-04)
- Published: 2021-10-13

## Affected versions

- Microsoft Windows 10 Version 2004: affected >= 10.0.0 and < 10.0.19041.1288
- Microsoft Windows 10 Version 20H2: affected >= 10.0.0 and < 10.0.19042.1288
- Microsoft Windows 10 Version 21H1: affected >= 10.0.0 and < 10.0.19043.1288
- Microsoft Windows 11 version 21H2: affected >= 10.0.0 and < 10.0.22000.258
- Microsoft Windows Server 2022: affected >= 10.0.0 and < 10.0.20348.288
- Microsoft Windows Server version 2004: affected >= 10.0.0 and < 10.0.19041.1288
- Microsoft Windows Server version 20H2: affected >= 10.0.0 and < 10.0.19042.1288

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

## References

- [other] https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-41357
- [other] https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-41357

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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.