CVE-2025-21271

EUVD-2025-2336
Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.8 HIGH
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
microsoftCNA
7.8 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Base Score
CVSS 3.x
EPSS Score
Percentile: 49%
Affected Products (NVD)
VendorProductVersion
microsoftwindows_10_1809
𝑥
< 10.0.17763.6775
microsoftwindows_10_1809
𝑥
< 10.0.17763.6775
microsoftwindows_10_21h2
𝑥
< 10.0.19044.5371
microsoftwindows_10_22h2
𝑥
< 10.0.19045.5371
microsoftwindows_server_2019
𝑥
< 10.0.17763.6775
microsoftwindows_server_2022
𝑥
< 10.0.20348.3091
𝑥
= Vulnerable software versions
Windows Releases
Platform
Version
Windows 10
1809 (x64, x86)
KB5050008
21H2 (arm64, x64, x86)
KB5049981
22H2 (arm64, x64, x86)
KB5049981
Windows Server 2019
Server Core
KB5050008
Standard
KB5050008
Windows Server 2022
Server Core
KB5049983
Standard
KB5049983
Common Weakness Enumeration
References
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21271