MS is good about issuing Updates, but terrible about letting it's users know about them. Office 2011 14.6.0 is now available. I found it by looking to see if it was issued. Even then it was tough to locate. It's here:
https://www.microsoft.com/en-us/download/details.aspx?id=50720
Lou
On my Mac`s office (2011) always advises of updates, via auto update. Just moved all to 14.6
Q-6