January 21, 2022 · Applied Cybernetics Group
CVE-2018-8453 — Microsoft Win32k
known ransomware use
Microsoft Win32k Privilege Escalation Vulnerability
- Added to KEV
2022-01-21- Federal due date
2022-07-21- Vendor
- Microsoft
- Product
- Win32k
- EPSS
- 99.3th percentile (score 0.698, as of
2026-07-13) - NVD CVSS v3.1
- —
- Ransomware use
- Known
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2018-8453
CISA short description
Microsoft Windows Win32k contains a vulnerability that allows an attacker to escalate privileges.
Required action
Apply updates per vendor instructions.