Worm could wreak havoc on exchange servers!

The bug in Exchange that Microsoft disclosed Tuesday is too juicy a target for hackers to pass up, security companies warned Wednesday, and users should expect to see a worm pop up any time.

Tuesday, Microsoft patched a flaw in Exchange 2000 and Exchange 2003's calendaring function. According to Microsoft's security bulletin, an attacker could exploit the vulnerability simply by sending a specially-crafted e-mail to the server.

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