v0rtex is an IOSurface exploit for iOS 10.x, created by Siguza. The UAF bug was first posted by windknown of the Pangu Team which had stated the bug being patched in iOS 11.2. Ian Beer had taken this into his own hands and later developed his exploit of the bug called async_wake which exploited iOS 11.0-11.1.2. Later on, Siguza had taken consideration of the exploit to then later port it to iOS 10, thus giving life to v0rtex.
- v0rtex | IOSurface exploit by Siguza
- http://blog.pangu.io/iosurfacerootuserclient-port-uaf/ (Note that the page may need to be translated for your liking)