January Windows 10 ‘Patch Tuesday’ updates roll out, fix important security flaw

No more spoofing for you.

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What you need to know

It’s the second Tuesday of the month, which means it’s time for another round of “Patch Tuesday” updates for Windows 10. Like previous Patch Tuesday releases, these cumulative updates don’t contain any new features. Rather, the focus is on security and reliability improvements across the board.

This month, Microsoft has also shipped a fix for an important security vulnerability. According to Microsoft’ssecurity guidanceon the flaw, the flaw could allow an attacker to conduct man-in-the-middle attacks and get their hands on confidential information.

“An attacker could exploit the vulnerability by using a spoofed code-signing certificate to sign a malicious executable, making it appear the file was from a trusted, legitimate source,” Microsoft says in its security guidance. “The user would have no way of knowing the file was malicious, because the digital signature would appear to be from a trusted provider.”

For PCs running Windows 10 versions 1909 and 1903, therelease notesinclude the following:

Windows 10 version 1809, meanwhile, will receive thefollowingupdates:

For Windows 10 versions 1803 and earlier, you’ll see a similar set of security updates, with the release notes noting the following:

Each of these updates is available now via Windows Update for anyone running supported versions of Windows 10. For more, you can check out Microsoft’s full release notes for each version at theWindows 10 support site.

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Dan Thorp-Lancaster is the former Editor-in-Chief of Windows Central. He began working with Windows Central, Android Central, and iMore as a news writer in 2014 and is obsessed with tech of all sorts. You can follow Dan on Twitter@DthorpLand Instagram@heyitsdtl.