The first thing I should mention is that this months update from Microsoft is the last for XP SP1 users should plan a migration path to SP2 to keep getting updates to XP. Multiple vulnerabilities this month have been patched in Office There are 4 advisories, but a total of 15 issues covered by those four. Powerpoint, Excel, Word and Office/Publisher there are a variety of exploits, some public (like the powerpoint) others that were privately reported. Also, Incidents.org gives a nice summary of the advisories and the severity of each (urgency of updating.) The setslice vulnerability is patched in this batch by the way.