cve 2026 50465

The cve 2026 50465 tag covers Microsoft’s Important-rated Windows DNS Client tampering vulnerability and its security fix. The weakness involves improper access control in Windows DNS and affects Windows 11 24H2, Windows 11 25H2, and Windows Server 2025. Microsoft addressed it in the July 14, 2026 security updates, including KB5101650. Exploitation requires local access and an already authorized, low-privileged attacker, but no user interaction is needed. A successful attack could compromise data integrity and disrupt system availability. The source reports Microsoft’s CVSS 3.1 base score as 7.1, while the National Vulnerability Database record is still awaiting additional enrichment.