This article describes update 4461632 for Office Online Server that was released on September 22, 2026.
Be aware that the update in the Microsoft Download Center applies to the Microsoft Installer (.msi)-based edition of Office 2016. It doesn't apply to the Office 2016 Click-to-Run editions, such as Microsoft Office 365 Home. (See What version of Office am I using?)
Improvements and fixes
This update fixes the known issue in KB5002910 that causes certain paste operations to fail silently.
How to download and install the update
You can get the standalone update package through the Microsoft Download Center. To install the update, follow the installation instructions on the download page.
Download security update for Office Online Server (KB4461632).
File information
The English (United States) version of this software update installs files that have the attributes that are listed in the following tables. The dates and times for these files are listed in Coordinated Universal Time (UTC). The dates and times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and times may change when you perform certain operations on the files.
Download the list of files that are included in security update 4461632
References
Learn about the standard terminology that's used to describe Microsoft software updates.
The Office System TechCenter contains the latest administrative updates and strategic deployment resources for all versions of Office.