[ CVE-2022-21882 · Published 11 Jan 2022 ]
Microsoft Win32k Privilege Escalation Vulnerability
Exploited · CISA KEV CVSS 7.8
EPSS 59%Fix available
[ Why it matters ]Priority signals
- Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2022-02-04
- Known to be used in ransomware campaigns
- EPSS: 59% chance of exploitation in the next 30 days (higher than 99% of CVEs)
[ Description ]Official description
Win32k Elevation of Privilege Vulnerability
CISA: Microsoft Win32k contains an unspecified vulnerability that allows for privilege escalation.
[ Fixes ]Fixes and patches
CISA required action (US federal deadline 18 Feb 2022): Apply updates per vendor instructions.
- Patch on msrc.microsoft.comVendor patch or bulletin · NVD · Reference tagged 'Patch' by NVD
- Patch on portal.msrc.microsoft.comVendor patch or bulletin · NVD · Reference tagged 'Patch' by NVD
[ References ]References
- msrc.microsoft.com/update-guide/vulnerability/CVE-2022-21882PatchVendor Advisory
- packetstormsecurity.com/files/166169/Win32k-ConsoleControl-Offset-Confusion-Privilege-E…Third Party AdvisoryVDB Entry
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-21882PatchVendor Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalogUS Government Resource