June 8, 2021—KB5003687 (OS Build 10240.18967) - EXPIRED

EXPIRATION NOTICE****IMPORTANT As of 9/12/2023, this KB is no longer available from Windows Update, the Microsoft Update Catalog, or other release channels. We recommend that you update your devices to the latest security quality update.

12/8/20
For information about Windows update terminology, see the article about the types of Windows updates and the monthly quality update types. To view other notes and messages, see the Windows 10, version 1507 update history home page.

Highlights

• Updates to improve Windows OLE (compound documents) security.
• Updates for verifying usernames and passwords.
• Updates for storing and managing files.

Improvements and fixes

This security update includes quality improvements. Key changes include:

• Security updates to the Microsoft Scripting Engine, Windows App Platform and Frameworks, Windows Cloud Infrastructure, Windows Authentication, Windows Fundamentals, Windows Virtualization, Windows HTML Platform, and Windows Storage and Filesystems.
  If you installed earlier updates, only the new fixes contained in this package will be downloaded and installed on your device.For more information about the resolved security vulnerabilities, please refer to the new Security Update Guide website.

Windows Update ImprovementsMicrosoft has released an update directly to the Windows Update client to improve reliability. Any device running Windows 10 configured to receive updates automatically from Windows Update, including Enterprise and Pro editions, will be offered the latest Windows 10 feature update based on device compatibility and Windows Update for Business deferral policy. This doesn’t apply to long-term servicing editions.

Known issues in this update

• error 5: access is denied
• error 1764: The requested operation is not supported.
• System.InvalidOperationException,
  Microsoft.PowerShell.Commands.GetEventLogCommand
• Windows has not provided an error code.
  Note Event Viewer and other apps using current non-legacy APIs to access event logs should not be affected.| This is expected due to security hardening changes relating to Event Tracing for Windows (ETW) for CVE-2021-31958. This issue is resolved if the local and remote devices both have installed updates released June 8, 2021 or later.

How to get this update

This update is no longer available.