No surprise, it had to happen one day
This should be no surprise. The product is closed source, so no code reviews. When installed it starts a background process TeamViewer 11(32 bit). Better change the startup type to manual, and start when needed/
Except from this, teamviewer uses servers to manage the traffic. Plenty of attack surface for anyone creative.
The world should really move on to OpenSource for this kind of stuff, in the end many eyes see more.