cve 2026 50401

The cve 2026 50401 tag covers Microsoft’s security issue in the Windows Cloud Files Mini Filter Driver. The vulnerability is an out-of-bounds read that can expose information and affects supported editions of Windows 10, Windows 11, Windows Server 2019, Windows Server 2022, and Windows Server 2025. Exploitation requires local access and low-level privileges, but does not require user interaction, with a potentially high confidentiality impact. Microsoft addressed the flaw through its July 14, 2026 security updates. This archive focuses on the affected Windows versions, the vulnerability’s technical conditions, and deployment of the corresponding cumulative update as the primary remediation.