I'm struggling to think of another example of a security device that had to be junked after an incident. I imagine that this isn't actually the first such incident, but no others come to mind.
Usually this sort of thing happens when a very old device reaches end-of-support/end-of-life. At that point you've gotten your investment from the device and it's time to upgrade to something modern - but this cycle is often ten years.
To Barracuda's credit, they are shipping new devices to effected customers.