Oracle has pushed a critical patch update for its Java SE platform that fixes at least 37 security vulnerabilities in the widely-installed program. Several of these flaws are so severe that they are likely to be exploited by malware or attackers in the days or weeks ahead. The latest update for Java 7 (the version most users will have installed) brings the program to Java 7 Update 55. Those whove chosen to upgrade to the newer, feature release version of Java 8 will find fixes available in Java 8 Update 5.”]
Source: https://krebsonsecurity.com/2014/04/critical-java-update-plugs-37-security-holes/