I think it's safe to say that 100% of all software and hardware have a security vulnerability of some kind, though that doesn't mean the vulnerabilities are known or exploitable.
Exactly. Being on the bleeding edge doesn't mean that people aren't vulnerable, it just means that people don't know how vulnerable they are.
But it does make you much less vulnerable, because you're only vulnerable to the tiny proportion of attackers who have discovered a zero day exploit.
That's true of older versions with security updates too.
Which is precisely why I use carrier pigeons from my secure locations to use the internet... All disks in and out are block-level scanned and analysed before loaded at the application level, and USB ports are hot glued closed, along with peripherals hot-glued in place.