April 25, 2022 · Applied Cybernetics Group
CVE-2021-40450 — Microsoft Win32k
Microsoft Win32k Privilege Escalation Vulnerability
- Added to KEV
2022-04-25- Federal due date
2022-05-16- Vendor
- Microsoft
- Product
- Win32k
- EPSS
- 74.7th percentile (score 0.016, as of
2026-10-04) - NVD CVSS v3.1
- —
- Ransomware use
- Unknown
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2021-40450
CISA short description
Microsoft Win32k contains an unspecified vulnerability that allows for privilege escalation.
Required action
Apply updates per vendor instructions.