[ CVE-2021-1732 · Published 25 Feb 2021 ]
Microsoft Win32k Privilege Escalation Vulnerability
Exploited · CISA KEV CVSS 7.8
EPSS 78%Fix available
[ Why it matters ]Priority signals
- Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2021-11-03
- Known to be used in ransomware campaigns
- EPSS: 78% chance of exploitation in the next 30 days (higher than 100% of CVEs)
[ Description ]Official description
Windows 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 17 Nov 2021): Apply updates per vendor instructions.
- Patch on portal.msrc.microsoft.comVendor patch or bulletin · NVD · Reference tagged 'Patch' by NVD
[ References ]References
- packetstormsecurity.com/files/161880/Win32k-ConsoleControl-Offset-Confusion.htmlExploitThird Party AdvisoryVDB Entry
- packetstormsecurity.com/files/166169/Win32k-ConsoleControl-Offset-Confusion-Privilege-E…ExploitThird Party AdvisoryVDB Entry
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1732PatchVendor Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalogUS Government Resource