cve 2026 49790

The cve 2026 49790 tag covers reporting on Microsoft's July 2026 security fix for a high-severity elevation-of-privilege vulnerability in the Windows Universal Disk Format (UDFS) file system driver. The issue affects supported Windows 10, Windows 11, and Windows Server releases and was addressed through the July 14 cumulative security updates issued for Patch Tuesday. Coverage focuses on the vulnerability's CVSS 3.1 score of 7.3, its implications for confidentiality, integrity, and availability, and the need for administrators to deploy the updates and verify that endpoints meet Microsoft's fixed build levels. This archive is intended for tracking remediation guidance and related Windows security information.