Anything that was patched in 8.5 would have been patched in 8.7 as part of the building process.
I would greatly recommend that you look towards upgrading to SP5 or the - soon to be released - SP6 for LDMS 8.7 if you're running unpatched. Also, the same is true for your clients - those things often require a client-side fix, so making sure your clients have an up-to-date inventory scanner is rather important (i.e. - 8.5 clients sending inventory to an 8.7 Core would still cause this issue I'd imagine).
LANDesk EMEA Technical Lead
I think we'll looking for upgrading our coreserver and clients to LDMS 8.8 in january 2009.