Vulnerability Intelligence Report
Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability
CVE-2025-62221
Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.
CISA KEV
SSVC: Active Exploitation
CVSS Base Score
7.8
HIGH
Exploitability:1.9
Impact Score:5.9
EPSS Probability:2.34%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-416 ↗CWE-416: Use After Free
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Microsoft | Windows 10 Version 1809 | 10.0.17763.0 < 10.0.17763.8146 (affected) |
| Microsoft | Windows 10 Version 21H2 | 10.0.19044.0 < 10.0.19044.6691 (affected) |
| Microsoft | Windows 10 Version 22H2 | 10.0.19045.0 < 10.0.19045.6691 (affected) |
| Microsoft | Windows 11 version 22H3 | 10.0.22631.0 < 10.0.22631.6345 (affected) |
| Microsoft | Windows 11 Version 23H2 | 10.0.22631.0 < 10.0.22631.6345 (affected) |
| Microsoft | Windows 11 Version 24H2 | 10.0.26100.0 < 10.0.26100.7462 (affected) |
| Microsoft | Windows 11 Version 25H2 | 10.0.26200.0 < 10.0.26200.7462 (affected) |
| Microsoft | Windows Server 2019 | 10.0.17763.0 < 10.0.17763.8146 (affected) |
| Microsoft | Windows Server 2019 (Server Core installation) | 10.0.17763.0 < 10.0.17763.8146 (affected) |
| Microsoft | Windows Server 2022 | 10.0.20348.0 < 10.0.20348.4529 (affected) |
| Microsoft | Windows Server 2022, 23H2 Edition (Server Core installation) | 10.0.25398.0 < 10.0.25398.2025 (affected) |
| Microsoft | Windows Server 2025 | 10.0.26100.0 < 10.0.26100.7462 (affected) |
| Microsoft | Windows Server 2025 (Server Core installation) | 10.0.26100.0 < 10.0.26100.7462 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Microsoft Corporation · Vendor · USA |
| Reserved | 2025-10-08T20:10:09 |
| Published | 2025-12-09T17:56:10 |
| Patch Date | 2025-12-09 |
| Last Updated | 2026-04-16T14:19:07 |
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