Nine of this month’s fixes are for Microsoft Windows, with a maximum severity rating of critical.
Another bulletin will affect Microsoft Exchange, with a maximum severity rating of important.
The remaining two patches will both affect Microsoft Office. They will have a maximum severity rating of critical.
One of the patches is expected to fix a flaw in Microsoft Word that allows a hacker to execute code onto a PC from a remote location.
The Redmond, Wash., software company will also release an update for its Malicious Software Removal Tool, and three high priority non-security updates.