It is a critical vulnerability in Exchange Server 2003/2000, which allows hackers to gain remote control of the affected computer with the same privileges as the logged on user.

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MS06-019 is not categorized as virus, worm, Trojan or backdoor. It is a critical vulnerability in Exchange Server 2003/2000, which allows arbitrary code to be remotely executed in the vulnerable computer.

If exploited successfully, MS06-019 allows hackers to gain remote control of the affected computer with the same privileges as the logged on user. If this user had administrator rights, the hacker could take complete control of the system: create, modify or delete files, install programs, create new user accounts, etc.

This vulnerability is usually exploited by sending a specially crafted message to an Exchange Server.

If you have Exchange Server 2003/2000, it is recommendable to download and apply the security patch for this vulnerability. Click here to access the web page for downloading the patch.