Security Vulnerability With Java Web Start Related to Incorrect Use of System Classes
Dunno if 6.0 is affected, too. Well, there is u1 if you feel like updating.
http://java.sun.com/javase/downloads/index.jsp
On a side note… there is an update for Sun Java System Directory Server:
Security Vulnerability in Sun Java System Directory Server May Cause Denial of Service (DoS)
