OpenSSLCipher.java in Conscrypt in Android 6.x before 2016-05-01 mishandles resets of the Additional Authenticated Data (AAD) array, which allows attackers to spoof message authentication via unspecified vectors, aka internal bugs 27324690 and 27696681.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 26.5%