Microsoft has released a patch that eliminates a security
vulnerability in Microsoft(r) Exchange Server 5.5. The vulnerability
could enable a malicious user to cause an Exchange server to fail.

Frequently asked questions regarding this vulnerability
and the patch can be found at
http://www.microsoft.com/technet/security/bulletin/fq00-082.asp

Affected Software Versions
==========================
- Microsoft Exchange Server 5.5

Note: Exchange Server 2000 is not affected by the vulnerability.

Patch Availability
==================
- Microsoft Exchange Server 5.5:
http://www.microsoft.com/Downloads/Release.asp?ReleaseID=25443

Note: This patch can be applied atop systems running Exchange Server
5.5 Service Pack 3. It is included in Exchange Server 5.5 Service
Pack 4.