Oracle released 40 new Java security fixes. 37 of the vulnerabilities may be remotely exploitable without authentication.
The upcoming security changes in Oracle Java address three long-standing issues with the Java security model.
Oracle’s Java SE Critical Patch Update for April 2013 contains 19 CVEs with CVSS base score of 10 (the highest you can go) indicating that exploiting the vulnerability is not particularly challenging and could give complete control of compromised systems.
Making good on their promise, Security Exploration has published technical details about a Java issue that they consider to be a security vulnerability, but Oracle has categorized as demonstrating "allowed behavior".
Researchers from Kaspersky and CrySyS Lab continue to analyze the MiniDuke backdoor and have discovered two previously unknown infection mechanisms.