Five vulnerabilities were patched in Java 7 Update 15, all of them remotely exploitable, and three of them rated of the highest criticality by Oracle. The fixes come 19 days after Oracle accelerated its regularly scheduled patch release to Feb. 1. Apple has pushed out a new version of Java 6 for Mac OS X users that removes the Java plug-in, forcing users to go to Oracle for Java downloads if so desired. Apple admitted a number of Mac machines belonging to Apple employees were compromised by Java exploits.
Source: https://threatpost.com/oracle-patches-critical-java-flaws-7u15-021913/77543/