Windows Server 2025

Microsoft Fixes Remote Code Execution Flaw in Windows Remote Desktop Client

Microsoft has addressed a remote code execution vulnerability in the Windows Remote Desktop Client tracked as CVE-2026-69485 with a CVSS score of 8.8. The flaw stems from the use of an uninitialized resource and can be triggered by a specially crafted network request from an authenticated attacker with low privileges. Exploitation requires no user interaction such as clicking links or opening files and can lead to information disclosure, file modification, or service disruption. Multiple versions of Windows 10, Windows 11, and Windows Server 2016 through 2025 are affected, including Server Core installations. The issue was not publicly disclosed prior to patching and no active exploitation has been observed. Fixes were released in the September security updates including KB5124008 and KB5122871.

Microsoft Tightens Corporate Windows Activation with TPM-Bound KMS Servers

Microsoft is strengthening its corporate Windows licensing controls by introducing new requirements for KMS servers used in volume activation. The changes will bind KMS hosts to TPM hardware attestation, preventing cloned or fake servers from issuing licenses to unlicensed devices. Warnings will begin appearing in Windows Server 2025 in August 2026, with mandatory enforcement planned for the next LTSC release. Existing KMS systems will continue operating normally until the new rules take effect. The update targets enterprise environments with on-premises KMS infrastructure and does not affect individual consumer devices or common non-KMS activation bypass methods. Administrators can already verify TPM support on physical servers using the Get-TpmSupportedFeature command.