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 0.734, as of
2026-09-16) - NVD CVSS v3.1
- 7 (HIGH)
- 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.
NVD description
An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka "Win32k Elevation of Privilege Vulnerability." This affects Windows Server 2008, Windows 7, Windows Server 2008 R2. This CVE ID is unique from CVE-2018-8124, CVE-2018-8164, CVE-2018-8166.