High MSRC-CVE-2020-17103 1 CVE

Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability

Published Dec 8, 2020 · Updated Jun 9, 2026 · Revision 2

Vendor: Microsoft

Summary

Impact: Elevation of Privilege. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.

Details

Security updates
10.0.17763.8880 — https://support.microsoft.com/help/5094123
10.0.26100.32995 — https://support.microsoft.com/help/5094125
10.0.26200.8655 — https://support.microsoft.com/help/5094126
10.0.22631.7219 — https://support.microsoft.com/help/5093998
10.0.28000.2269 — https://support.microsoft.com/help/5095051

Vulnerabilities 1

High 7.0

CVE-2020-17103 Public exploit EPSS 30%

Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability

Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability

Microsoft Windows Server 2019 Windows Server 2019 (Server Core installation) Windows 10 Version 1809 Windows

Dec 9, 2020

Revision history

2026-06-09 #2
This CVE has been re-released to comprehensively address the vulnerability identified by CVE-2020-17103 Microsoft recommends installing the June 2026 updates for your Windows operating systems.
2020-12-08 #1
Information published.

References

CVE-2020-17103 Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-17103
Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
Common Vulnerability Scoring System
https://www.first.org/cvss