Oracle JDK and JRE - Remote Code Execution via Reflection and JDBC Driver Manager
The Java Runtime Environment (JRE) component in Oracle Java SE 7 Update 17 and earlier, and OpenJDK 6 and 7, allows remote attackers to execute arbitrary code via unspecified vectors involving reflection, Libraries, "improper toString calls," and the JDBC driver manager, as demonstrated by James Forshaw during a Pwn2Own competition at CanSecWest 2013.