high7.8Known exploited
CVE-2025-62221
Microsoft Windows Use After Free Vulnerability
Exploited in the wild
This vulnerability is on the CISA Known Exploited Vulnerabilities list, added 2025-12-09. Federal due date: 2025-12-30.
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Impact
Microsoft Windows Cloud Files Mini Filter Driver contains a use after free vulnerability that can allow an authorized attacker to elevate privileges locally.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Microsoft | Windows 10 1809 | before 10.0.17763.8146 |
| Microsoft | Windows 10 21h2 | before 10.0.19044.6691 |
| Microsoft | Windows 10 22h2 | before 10.0.19045.6691 |
| Microsoft | Windows 11 23h2 | before 10.0.22631.6345 |
| Microsoft | Windows 11 24h2 | before 10.0.26100.7392 |
| Microsoft | Windows 11 25h2 | before 10.0.26200.7392 |
| Microsoft | Windows Server 2019 | before 10.0.17763.8146 |
| Microsoft | Windows Server 2022 | before 10.0.20348.4467 |
| Microsoft | Windows Server 2022 23h2 | before 10.0.25398.2025 |
| Microsoft | Windows Server 2025 | before 10.0.26100.7392 |