Java 0Day: Turn off Java applets nowAll versions of Java 7, including the current Java 7 update 6, are vulnerable to the hole that is already being exploited in the wild. With the publication of a vulnerability notice by the US-CERT and warnings from the German BSI (Federal Office for Information Security), the best advice for all users is to disable Java applets in their browsers on all operating systems.
http://www.h-online.com/security/news/item/Java-0Day-Turn-off-Java-applets-now-1678618.html