MC394275: Take action: Out-of-band security update to address an issue with Azure Active Directory services on Arm-based devices

Microsoft is releasing Out-of-band (OOB) security updates today, June 20, 2022, only for Arm-based Windows devices. This update addresses a known issue that only affects Windows Arm-based devices and might prevent you from signing in using Azure Active Directory (AAD). Apps and services that use AAD to sign in, such as VPN connections, Microsoft Teams, and Microsoft Outlook, might also be affected.

Important: This issue only affects Windows devices that use Arm processors. No other platforms will receive this out-of-band update. This OOB update is cumulative. We recommend that you install this OOB update instead of the June 14, 2022 security update for affected devices.

All updates listed below are available on Windows Update, Windows Update for Business, Windows Server Update Services (WSUS), and Microsoft Update Catalog. For instructions, see the release notes for your OS listed below:

• Windows 11, version 21H2: KB5016138
• Windows 10, version 21H2: KB5016139
• Windows 10, version 21H1: KB5016139
• Windows 10, version 20H2: KB5016139

Message ID: MC394275
Published: 21 June 2022
Updated: 22 June 2022
Action required by: 20 June 2022
Platform: Windows Desktop, World tenant