The WifiEnterpriseConfig class in net/wifi/WifiEnterpriseConfig.java in Wi-Fi 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 2016-09-01 includes a password in the return value of a toString method call, which allows attackers to obtain sensitive information via a crafted application, aka internal bug 25624963.