For consumers Oracle’s updates for Java (version 8 Update 71) will be a priority. This month 8 security issues are addressed in Java, of which 3 are critical and have a very high CVSS score (defined). A set of suggested practices for using Java on your computer are provided here.
If you use any of the Oracle products listed here, please install the appropriate security updates as soon as possible.
As a routine precaution I would recommend backing up the data on any device for which you are installing updates in order to prevent data loss in the rare event that any update causes unexpected issues.