May 8, 2018—KB4103718 (Monthly Rollup)

Improvements and fixes

This security update includes improvements and fixes that were part of update KB4093113 (released April 17, 2018) and addresses the following issues:

• 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

1. To locate the network device, launch devmgmt.msc; it may appear under Other Devices.
2. To automatically rediscover the NIC and install drivers, select Scan for Hardware Changes from theAction menu.
   a. Alternatively, install the drivers for the network device by right-clicking the device and choosing Update. Then chooseSearch automatically for updated driver softwareorBrowse my computer for driver software.
   After installing this update, some Windows 7.0 SP1 files reverted to older versions.| This issue is resolved in KB4103713.

How to get this update

This update will be downloaded and installed automatically from Windows Update. To get the standalone package for this update, go to the Microsoft Update Catalog website.File informationFor a list of the files that are provided in this update, download the file information for update 4103718.