A total of 81 security vulnerabilities have been addressed in this month’s set of security patches for the Android platform. 13 of the flaws were rated Critical severity.

The security bulletin has two security patch levels, each focused on addressing vulnerabilities in specific components.

The 2017-09-01 security patch level fixes a total of 30 vulnerabilities, 10 of which are rated Critical severity, 15 High risk, and 5 Medium severity. Affected Android iterations range from version 4.4.4 to 8.0, but only some vulnerabilities impact all platform releases.