This security update resolves a vulnerability in Microsoft Windows. An information disclosure vulnerability exists when the Microsoft Internet Messaging API improperly handles objects in memory. An attacker who successfully exploited this vulnerability could test for the presence of files on disk.
If you install a language pack after you install this update, you must reinstall this update. Therefore, we recommend that you install any language packs that you need before you install this update. For more information, see Add language packs to Windows.
Known issues in this security update
After you install this security update, System Center Operations Manager (SCOM) Management Console crashes in State view.
To resolve this issue, install the following update:
3200006 System Center Operations Manager Management Console crashes after you install MS16-118 and MS16-126
How to obtain and install the update
Method 1: Windows Update
This update is available through Windows Update. When you turn on automatic updating, this update will be downloaded and installed automatically. For more information about how to turn on automatic updating, seeGet security updates automatically.