ez-ipupdate is susceptible to a format string bug. It, at the very least, affect versions 3.0.11b8, 3.0.11b7, 3.0.11b6, 3.0.11b5 and 3.0.10. It does not affect 2.9.6.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/35020/ezipupdate.txt
Source: https://packetstormsecurity.com/files/35020/ezipupdate.txt.html