May 23, 2022 · Applied Cybernetics Group
CVE-2020-0638 — Microsoft Update Notification Manager
known ransomware use
Microsoft Update Notification Manager Privilege Escalation Vulnerability
- Added to KEV
2022-05-23- Federal due date
2022-06-13- Vendor
- Microsoft
- Product
- Update Notification Manager
- EPSS
- 81.3th percentile (score 0.015, as of
2026-06-08) - NVD CVSS v3.1
- —
- Ransomware use
- Known
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2020-0638
CISA short description
Microsoft Update Notification Manager contains an unspecified vulnerability that allows for privilege escalation.
Required action
Apply updates per vendor instructions.