CVE-2022-21882
Microsoft Win32k Privilege Escalation Vulnerability
Microsoft · Win32k
Vulnerability details
Microsoft Win32k contains an unspecified vulnerability that allows for privilege escalation.
Added to CISA KEV: 2022-02-04
Ransomware campaign use: Known
CISA due date: 2022-02-18
Defensive guidance from CISA
Apply updates per vendor instructions.
This is the source's required-action field, not an independently validated patch procedure. Refer to the vendor for exact affected versions and fixes.
Source catalog date: 2026-11-06T19:44:45.1797Z · Last retrieved: 2026-11-06 21:02:26 UTC