Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 Update 21 and earlier, 6 Update 45 and earlier, and 5.0 Update 45 and earlier, and OpenJDK 7, allows remote attackers to affect confidentiality via unknown vectors related to Libraries, a different vulnerability than CVE-2013-2443 and CVE-2013-2455. NOTE: the previous information is from the June 2013 CPU. Oracle has not commented on claims from another vendor that this issue is related to "network address handling in virtual machine identifiers" and the lack of "unique and unpredictable IDs" in the java.rmi.dgc.VMID class.