cve 2026 50431

The cve 2026 50431 tag covers Microsoft’s July 2026 security information about a Windows Quality of Service (QoS) Packet Scheduler vulnerability. The flaw can expose sensitive information on supported Windows 10, Windows 11, and Windows Server releases until the July security updates are installed. Microsoft rates the issue Important, while its CVSS 3.1 base score is 5.5 because exploitation requires an attacker with existing local access and limited privileges. Microsoft assesses exploitation as less likely. This archive provides focused coverage of the vulnerability, its affected Windows platforms, the required update, and the security context surrounding the disclosure.