Microsoft Confirms Update Warning For Office 365, Office 2016 And Office 2013 Users

While Windows 10 users were waiting for the release of the next major feature update, Microsoft has already pushed out April Patch Tuesday updates for all supported versions of the OS. As usual, the 4th batch of major cumulative updates for the year brings much-needed security updates and improvements.

First of all, those who are running Windows 10 version 1909 on their machines can now grab the build 18363.778 (KB4549951). Moreover, the users of Windows 10 version 1903 need to download the build 18362.778 on their PCs. Besides the general security enhancements rolled out on this Patch Tuesday, the latest updates bring fixes for some nasty bugs in Microsoft Office products.

With this update, Microsoft blocked all the potential exploits for the users of the Office productivity suite. In addition, the cumulative updates also bring fixes for storing and managing files alongside with some security improvements for the OS when it performs basic operations. Here’s the official changelog which details changes in both updates:

  • Updates to improve security when using Microsoft Office products.
  • Updates to improve security when Windows performs basic operations.
  • Updates for storing and managing files.

April 2020 Office Security Updates May Block VBA Object Libraries

Furthermore, before installing this patch, Microsoft recommends its users to install the latest servicing stack update (KB4552152) first, though it would be available as an automatic update. Interestingly, the support article suggests that Microsoft isn’t aware of any issues at the moment, the Redmond giant secretly published a support article for VBA solutions.

On the frequently asked questions (FAQ) post, Microsoft addresses IT administrators to guide them “what to do if their existing VBA solution breaks.” Microsoft described the issue in the following manner:

“When you install one of the Microsoft Office security updates that are listed in Microsoft Common Vulnerabilities and Exposures CVE-2020-0760, you might notice that some types of Visual Basic for Applications (VBA) references are blocked, and you receive an error message.”

While explaining the type of files that might be affected by this issue, Microsoft says that the following types of VBA references could be blocked: Typelibs (*.olb, *.tlb, *.dll), ActiveX controls(*.ocx), Executable files (*.exe). The problem appears irrespective of the fact that the file is downloaded from the internet, or located on the internet or intranet servers. As a result, you would see an error message:

April 2020 Patch Tuesday update bugs
Compile error

If you are one of those who are affected by this issue, don’t forget to check out the official post to unblock VBA object libraries. Did you encounter this issue after installing today’s office patches? Let us know in the comments section below.

Alex Schoff
Alex is a technology reporter with a particular interest in Microsoft and Windows. He keeps a close eye on major developments related to Windows 10, Google Chrome, Office 365, and more.