This security update includes improvements and fixes that were a part of update KB4284842 (released June 21, 2018) and addresses the following issues:
- Provides protections for an additional vulnerability involving side-channel speculative execution known as Lazy Floating Point (FP) State Restore (CVE-2018-3665) for 64-Bit (x64) versions of Windows.
- Updates Internet Explorer's Inspect Element feature to conform to the policy that disables the launch of Developer Tools.
- Addresses an issue where DNS requests disregard proxy configurations in Internet Explorer and Microsoft Edge.
- Security updates to Internet Explorer, Windows apps, Windows graphics, Windows Shell, Windows datacenter networking, Windows wireless networking, and Windows virtualization.
For more information about the resolved security vulnerabilities, see the Security Update Guide.