CVE-2015-3728
The WiFi Connectivity feature in Apple iOS before 8.4 allows remote Wi-Fi access points to trigger an automatic association, with an arbitrary security type, by operating with a recognized ESSID within an 802.11 network’s coverage area.
Date published : 2015-07-02
http://lists.apple.com/archives/security-announce/2015/Jun/msg00001.html