systemui/statusbar/phone/QuickStatusBarHeader.java in the System UI Tuner in Android 7.0 before 2016-09-01 does not prevent tuner changes on the lockscreen, which allows physically proximate attackers to gain privileges by modifying a setting, aka internal bug 30107438.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 5.4%