The report from 9to5Mac claims that the vulnerability has been demonstrated to them, and like we said, this involves HomeKit-connected devices such as smart locks and garage door openers. This means that this vulnerability could in theory allow someone to open your front door and walk right in, no key required.
Details of the vulnerability weren’t shared for obvious reasons, but 9to5Mac claims that it is rather difficult to reproduce which means that not just anyone will be able to exploit it, thankfully. The good news is that Apple has since offered a temporary fix which is said to be done server-side, meaning that no action is needed by the user.
However this is only temporary as Apple does plan on fixing the vulnerability permanently in future software updates, but in the meantime hopefully the temporary fix will prevent any unwanted consequences.