CVE-2026-88107: Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability
Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.
Other sources
Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.33650Patch KB5126646 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.28000.3231Patch KB5127646 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.9711Patch KB5127648 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26200.9711Patch KB5127648 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26300.9711Patch KB5127648 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.22631.7652Patch KB5126653 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.20348.5761Patch KB5126655 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19044.7807Patch KB5126657 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.17763.9376Patch KB5126651
Event History
Frequently Asked Questions
Who is exposed to this vulnerability?
Systems running the listed Microsoft Windows 10 or Windows 11 client platforms, or Windows Server 2019, Windows Server 2022, or Windows Server 2025, are in scope based on the provided software information.
What access does an attacker need to exploit it?
An attacker must already be authorized on the affected system and able to act locally. The supplied vector indicates low privileges are required and no user interaction is required.
What could successful exploitation allow?
Successful exploitation could allow the local authorized attacker to elevate privileges. The provided impact metrics indicate high potential impact to confidentiality, integrity, and availability.
Is this remotely exploitable?
The supplied attack vector is local, so the data does not indicate remote exploitation over a network.