Improvements and fixes
This security update includes quality improvements. No new operating system features are being introduced in this update. Key changes include:
Addresses an issue that may cause a memory leak on SMB servers after installing KB4056897 or any other recent monthly update. This leak may occur when the requested path traverses a symbolic link, a mount point, or a directory junction and the registry key is set to 1: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\LanManServer\Parameters\EnableEcp
Addresses an issue that may cause an error when connecting to a Remote Desktop server. For more information, see CredSSP updates for CVE-2018-0886.
Security updates to Internet Explorer, Windows apps, Windows kernel, Microsoft Graphics Component, Windows storage and filesystems, HTML help, and Windows Hyper-V.
For more information about the resolved security vulnerabilities, see the Security Update Guide.
Known issues in this update
A stop error occurs on computers that don't support Streaming Single Instructions Multiple Data (SIMD) Extensions 2 (SSE2).
Upgrade your machines with a processor that supports SSE2 or virtualize those machines.
How to get this update
This update is now available for installation through WSUS. To get the standalone package for this update, go to the Microsoft Update Catalog website.
For a list of the files that are provided in this update, download the file information for update 4103712.