January Patch Tuesday updates fix intranet server vulnerability

Teodor Nechita
by Teodor Nechita
Software Managing Editor
Eager to help those in need, Teodor writes articles daily on subjects regarding Windows, Xbox, and all things tech-related. When not working, you may usually find him either at the gym or taking a... Read more
Affiliate Disclosure
  • If you are running the Windows OS 10 on your PC, know that it is update time.
  • Patch Tuesday is here, and it brings cumulative updates for all versions of Windows 10.
  • All of these update, despite being different, address a common intranet-server vulnerability.
  • Learn more about it and how you can apply it by reading the article below!
January Patch Tuesday fixes intranet

The January Patch Tuesday have arrived, and with them come a variety of new changes and fixes for all versions of Windows 10.

There are currently 9 different versions of the OS still actively receiving Patch Tuesday updates, and with so many versions still available, the cumulative updates themselves vary in terms of what they bring.

However, sometimes a vulnerability that is very critical is detected, and all cumulative updates address that particular issue, and that is precisely the case with this month’s updates


A severe vulnerability issue with intranet servers was fixed

According to the official Microsoft changelog, e very serious security vulnerability was fixed that targeted HTTPS-based intranet servers:

Addresses a security vulnerability issue with HTTPS-based intranet servers. After installing this update, HTTPS-based intranet servers cannot, by default, use a user proxy to detect updates.

Scans using these servers will fail if you have not configured a system proxy on the clients. If you must use a user proxy, you must configure the behavior using the policy Allow user proxy to be used as a fallback if detection using system proxy fails.

To ensure the highest levels of security, also use Windows Server Update Services (WSUS) Transport Layer Security (TLS) certificate pinning on all devices.

This change does not affect customers who are using HTTP WSUS servers. For more information, see Changes to scans, improved security for Windows devices.

Additionally, these update also address a security bypass vulnerability that affected the Printer Remote Procedure Call (RPC) binding handles authentication for the remote Winspool interface.


All things considered, it is solely up to you whether to update your Windows 10 PC or not, as you can easily pause your Windows Update menu from automatically downloading them for you.

However, due to the fact that this update does bring a lot of security fixes, including 91 CVEs, our advice is that you update as soon as possible.

If you have no idea how to prepare your PC for Patch Tuesday updates, then here is a list of best practices for Patch Tuesday that you should follow every month before applying these updates.

This is so that the update process goes flawlessly, so that you won’t encounter any Windows 10 Update errors, and get the latest protective features as soon as possible.

Let us know if you decided on applying the latest cumulative update on your PC by leaving us a message in the comments section below.


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