The company has admitted to undocumented backdoor accounts in many of their products, including firewalls, spam filters and VPN appliances. If you have these devices on your network, the really bad news is that these accounts can potentially be used by others, not just to Barracuda, to access them remotely. An Austrian security researcher discovered the problem. Barracuda has labeled the vulnerabilities “medium” level threats andf they have released a fix. Read more here:
http://krebsonsecurity.com/2013/01/backdoors-found-in-barracuda-networks-gear/