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7.0
Windows Cloud Files Mini Filter Driver Privilege Escalation
CVE-2026-27926
Summary
A flaw in the Windows Cloud Files Mini Filter Driver could allow an authorized user to gain more powerful access to a Windows system. This could happen if an attacker can take advantage of a mistake in how the driver handles shared resources. To protect your system, you'll want to apply the latest security updates from Microsoft.
Original title
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.
Original description
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.
nvd CVSS3.1
7.0
Vulnerability type
CWE-362
Race Condition
CWE-416
Use After Free
Published: 14 Apr 2026 · Updated: 14 Apr 2026 · First seen: 14 Apr 2026