Was just wondering if anyone was aware of this news that started flying around today:
The reason this security hole is so notable is that pretty much every OS and browser that uses Java 7 is supposedly targetable. (There have been varying reports on how successful it is against Chrome though)
So if you have the latest version of Java 7- you'll probably want to disable Java until Oracle gets a security update out- or downgrade to an older version like Java 6.
..... And Oracle doesn't exactly have the best track record with being timely on updates. -_- (Unless they get enough pressure, the security update probably won't come until October due to Oracle's updating schedule)