A researcher aiming to release a new browser bug for every date in July appears to be hitting his targets so far.

In order to reach his target, vulnerability researcher HD Moore has been using a technique known as "fuzzing" - sending random streams of data to break various parts of a program. To make life a little easier, he's not limited himself to IE only, finding bugs in Firefox and Apple's Safari already this month.

You can find more information on the Metasploit blog.