cve 2026 50458

The cve 2026 50458 tag covers information about a high-severity local privilege-escalation vulnerability affecting the Microsoft Brokering File System. The flaw is described as a use-after-free memory error that could allow an authenticated attacker with low-privilege access to gain complete control without user interaction. Coverage focuses on Microsoft’s July 14, 2026 security updates, which address the issue in Windows 11 versions 24H2 and 25H2 and Windows Server 2025. It also identifies security update KB5101650, the vulnerability’s CVSS 3.1 score of 7.8, and its records in Microsoft’s Security Update Guide and the National Vulnerability Database.