cve 2026 50333

The cve 2026 50333 tag covers Microsoft’s security fix for an elevation-of-privilege vulnerability in the Windows Spaceport.sys driver. The flaw could allow an authenticated local attacker to gain higher permissions through a missing authentication check for a critical function. Microsoft classified the issue as Important and addressed it in the July 14, 2026 monthly security updates through KB5101650. The vulnerability has a CVSS 3.1 base score of 7.8 High and is described as a post-compromise risk rather than a remotely exploitable entry point. This archive provides focused coverage of the vulnerability, its Windows driver impact, severity, and remediation.