Several new Java exploits have recently been uncovered. So far the all of the exploits that IBM has tested against their JDK and JREs have been unsuccessful. As my source in the upper echelons of IBM has said, “Thus, IBM products shipping the IBM JDK are not vulnerable to this exploit.”
Products that ship the Oracle JRE may be vulnerable to the exploits, and care should be taken until all of the fixes are released. Remember, nothing is sure until the fix is in.
Please read: Java Vulnerability Blog, from Tivoli AVP
In general it would be best to stay subscribed to the IBM Product Security Incident Response Blog to make sure you have the latest information on any security concerns with IBM products.