March 15, 2022 · Applied Cybernetics Group
CVE-2018-8120 — Microsoft Win32k
known ransomware use
Microsoft Win32k Privilege Escalation Vulnerability
- Added to KEV
2022-03-15- Federal due date
2022-04-05- Vendor
- Microsoft
- Product
- Win32k
- EPSS
- 99.4th percentile (score 0.737, as of
2026-07-13) - NVD CVSS v3.1
- —
- Ransomware use
- Known
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2018-8120
CISA short description
A privilege escalation vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory.
Required action
Apply updates per vendor instructions.