Oracle was in a bit of a hurry to get out the accelerated Critical Update that they did not include a small number of fixes initially intended for inclusion in the February. As a result, there will be a Critical Security Update on Tuesday, 19FEB2013.
Updates to February 2013 Critical Patch Update for Java SE (The Oracle Software Security Assurance Blog) (https://blogs.oracle.com/security/entry/updates_to_february_2013_critical)