CVE-2016-3761
NfcService.java in NFC in Android 4.x before 4.4.4, 5.0.x before 5.0.2, 5.1.x before 5.1.1, and 6.x before 2016-07-01 allows attackers to obtain sensitive foreground-application information via a crafted background application, aka internal bug 28300969.
Source: CVE-2016-3761