Alt-N posted a fix to a recently discovered vulnerability in the BES component of MDaemon.
If you run MDaemon w/BES enabled, you need to install the security patch described at KBA-02500 immediately.
Vulnerability in BlackBerry Enterprise Server (BES) by Dave Warren (everything-mdaemon.com) is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.