CVE-2025-21271HighCVSS 7.8
Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability
🔗 CVE IDs covered (1)
📋 Description
What privileges could be gained by an attacker who successfully exploited this vulnerability? An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.
🎯 Affected products12
- Windows 10 Version 1809 for 32-bit Systems
- Windows 10 Version 1809 for x64-based Systems
- Windows 10 Version 21H2 for 32-bit Systems
- Windows 10 Version 21H2 for ARM64-based Systems
- Windows 10 Version 21H2 for x64-based Systems
- Windows 10 Version 22H2 for 32-bit Systems
- Windows 10 Version 22H2 for ARM64-based Systems
- Windows 10 Version 22H2 for x64-based Systems
- Windows Server 2019
- Windows Server 2019 (Server Core installation)
- Windows Server 2022
- Windows Server 2022 (Server Core installation)
✅ Remediation
KB5050008 (Security Update) — fixed build 10.0.17763.6775 KB5049983 (Security Update) — fixed build 10.0.20348.3091 KB5049981 (Security Update) — fixed build 10.0.19044.5371 KB5049981 (Security Update) — fixed build 10.0.19045.5371
🔗 References (7)
- advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21271
- patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5050008
- referencehttps://support.microsoft.com/help/5050008
- patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5049983
- referencehttps://support.microsoft.com/help/5049983
- patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5049981
- referencehttps://support.microsoft.com/help/5049981