Microsoft Win32k Privilege Escalation Vulnerability

HIGH 7.8EXPLOITED (CISA KEV)CVE-2022-21882 · Published 11/01/2022 · updated 15/08/2026

Microsoft Win32k Privilege Escalation Vulnerability. Actively exploited: CISA added this vulnerability to its Known Exploited Vulnerabilities catalog on 04/02/2022. Patch affected systems as an emergency. It is known to be used in ransomware campaigns.

Package	Affected versions	Patched versions
Win32k Microsoft	Versions not published yet (product named by CISA KEV)

Description

Win32k Elevation of Privilege Vulnerability

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2022-21882 · Patch
packetstormsecurity.com/files/166169/Win32k-ConsoleControl-Offset-Confusion-Privilege-Escalation.html · Third Party Advisory
portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-21882 · Patch
cisa.gov/known-exploited-vulnerabilities-catalog · US Government Resource
CISA KEV · CVE-2022-21882

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