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CVE-2021-41357

CISA KEV

Published April 25, 2022 · Updated April 3, 2026

high
Official Description+

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

Affected Products

VendorProduct
MicrosoftWin32k

Patch Status

Patch by 2022-05-16

Recommended Actions

  1. Check if your systems use any of the affected products listed above.
  2. Apply vendor patches immediately if available.
  3. This vulnerability is in CISA's Known Exploited Vulnerabilities catalog — prioritize remediation.
  4. Monitor vendor advisories for updates and additional mitigations.
  5. Review logs for indicators of compromise related to CVE-2021-41357.