Researchers have a working exploit for the vulnerability (now patched), which allows for unauthenticated RCE and affects an estimated 70,000+ VPN/firewalls.
https://threatpost.com/massive-zero-day-hole-found-in-palo-alto-security-appliances/176170/
David “moose” Wolpoff, CTO at Randori, discusses security appliances and VPNs and how attackers only have to “pick one lock” to invade an enterprise through them.
https://threatpost.com/breaking-into-security-appliances/167584/