cve 2026 50339

The cve 2026 50339 tag covers a Windows Push Notifications vulnerability that can expose sensitive information to an authorized attacker with local, low-level privileges. Microsoft rates the issue CVSS 3.1 Medium at 5.5, while its confidentiality impact is High. The flaw is not a drive-by remote compromise and cannot be exploited anonymously over a network. Microsoft published details in its Security Update Guide on July 14, 2026, and shipped fixes for supported Windows 10, Windows 11, Windows Server 2019, Windows Server 2022, and Windows Server 2025 installations. Use this tag to follow coverage of the vulnerability, its scope, severity, affected systems, and Microsoft’s security updates.