TrackR Bravo device allows unauthenticated pairing, which enables unauthenticated connected applications to write to various device attributes. Updated apps, version 5.1.6 for iOS and 2.2.5 for Android, have been released by the vendor to address the vulnerabilities in CVE-2016-6538, CVE-2016-6539, CVE-2016-6540 and CVE-2016-6541.