The most severe of these issues is a Critical security vulnerability that could enable remote code execution on an affected device through multiple methods such as email, web browsing, and MMS when processing media files.
Android Security Advisory 2016-03-18 previously discussed use of CVE-2015-1805 by a rooting application. CVE-2015-1805 is resolved in this update. There have been no reports of active customer exploitation or abuse of the other newly reported issues. Refer to the Mitigations section for further details on the Android security platform protections and service protections such as SafetyNet, which improve the security of the Android platform.