KB4512578 improves security when using Microsoft Edge and IE

by Madalina Dinita
Madalina Dinita
Madalina Dinita
Windows & Software Expert
Madalina has been a Windows fan ever since she got her hands on her first Windows XP computer. She is interested in all things technology, especially emerging technologies... read more
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KB4512578 windows 10

The September Patch Tuesday updates are here. Microsoft rolled out a series of important security updates to all the supported Windows 10 versions.

If you’re running Windows 10 v1809, you can now download KB4512578 on your computer.

KB4512578 changelog

As Microsoft explains, this update improve your computer security when using Internet Explorer, Microsoft Edge, and input devices such as a mouse, keyboard, or stylus.

The patch also includes some updates for verifying user names and passwords.

Here official changelog reads as follow:

  • [KB4512578] Provides protections against a new subclass of speculative execution side-channel vulnerabilities, known as Microarchitectural Data Sampling, for 32-Bit (x86) versions of Windows (CVE-2019-11091, CVE-2018-12126, CVE-2018-12127, CVE-2018-12130). Use the registry settings as described in the Windows Client and Windows Server articles. (These registry settings are enabled by default for Windows Client OS editions and Windows Server OS editions.)
  • Security updates to Microsoft Edge, Internet Explorer, Microsoft Scripting Engine, Windows App Platform and Frameworks, Windows Input and Composition, Windows Fundamentals, Windows Authentication, Windows Cryptography, the Microsoft JET Database Engine, Windows Kernel, Windows Virtualization, and Windows Server.

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