March 28, 2022 · Applied Cybernetics Group
CVE-2018-8440 — Microsoft Windows
known ransomware use
Microsoft Windows Privilege Escalation Vulnerability
- Added to KEV
2022-03-28- Federal due date
2022-04-18- Vendor
- Microsoft
- Product
- Windows
- EPSS
- 98.9th percentile (score 0.742, as of
2026-06-08) - NVD CVSS v3.1
- —
- Ransomware use
- Known
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2018-8440
CISA short description
An elevation of privilege vulnerability exists when Windows improperly handles calls to Advanced Local Procedure Call (ALPC).
Required action
Apply updates per vendor instructions.