The new flaw apparently affects all versions of Java, including the most recent updates of Java 5, 6 and 7.
How does this affect users? Nothing has really changed: users are strongly urged to disable Java in their web browsers, since web sites are the most likely vector for attacks based on Java vulnerabilities. If that isn’t possible or practical for you, then your best course of action is to be extremely cautious when deciding whether to click any kind of link, in email or anywhere else. Simply visiting a web site can be enough to infect your computer.
Oracle has not responded to this latest report, and they have yet to respond to the previous Java vulnerability reports.