Arbitrary code can be executed on the remote host through Microsoft Publisher.
The remote host is running a version of Microsoft Publisher which is subject to a flaw which may allow arbitrary code to be run. An attacker may use this to execute arbitrary code on this host. To succeed, the attacker would have to send a rogue file to a user of the remote computer and have it open it. Then a bug in the font parsing handler would result in code execution.
Microsoft has released a set of patches for Publisher 2000, XP, 2003 and 2007: