Google Patches Severe Security Vulnerabilities for Android
In the July 2016 security bulletin, Google has released patches for Android to protect users against numerous security vulnerabilities. The most severe security weakness is a critical flaw in Mediaserver, which could enable hackers to access an Android device through email, web browsing, and MMS when processing media files. Google is not currently aware of any instance of these vulnerabilities being exploited in the wild.
Google recommends that you accept the update as soon as you receive the notification on your Android device.
For more information, see the Android security bulletin: https://source.android.com/security/bulletin/2016-07-01.html.