This update resolves potential security vulnerabilities, including the issue that is described in Microsoft security advisory 170012.
How to get this update
This update will be downloaded and installed automatically. It will be listed in the Windows Update history as follows:
Microsoft driver update for Surface System Aggregator Firmware
There are no prerequisites for installing this update.
This update requires two restarts to complete the update process.
Update replacement information
This update doesn't replace a previously released update.
Surface System Aggregator Firmware – Firmware (103.1837.257.0)
Learn about the terminology that Microsoft uses to describe software updates.