CVE 2013-0450
Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 through Update 11, 6 through Update 38, and 5.0 through Update 38, and OpenJDK 6 and 7, allows remote attackers to affect confidentiality, integrity, and availability via vectors related to JMX. NOTE: the previous information is from the February 2013 CPU. Oracle has not commented on claims from another vendor that this issue is related to improper checks of "access control context" in the JMX RequiredModelMBean class.
See the 
CVE page on Mitre.org
for more details.
