About the security content of iOS 9.3 - Apple Support

For the protection of our customers, Apple does not disclose, discuss, or confirm security issues until a full investigation has occurred and any necessary patches or releases are available. To learn more about Apple Product Security, see the Apple Product Security website. For information about...

CVE-2016-1734

AppleUSBNetworking in Apple iOS before 9.3 and OS X before 10.11.4 allows physically proximate attackers to execute arbitrary code in a privileged context or cause a denial of service memory corruption via a crafted USB device...