Looks very similar to what Brian posted a couple days ago
http://myitforum.com/myitforumwp/2013/07/15/configmgr-issues-with-ms13-052-kb2840628/ Sent from Microsoft Surface Pro From: Jason Sandys Sent: Wednesday, July 17, 2013 9:08 PM To: [email protected] CSS put up a blog earlier today discussing what they’ve seen: http://blogs.technet.com/b/configmgrteam/archive/2013/07/17/issues-reported-with-ms13-052-kb2840628-and-configmgr.aspx J From: [email protected] [mailto:[email protected]] On Behalf Of Dzikowski, Michael Sent: Monday, July 15, 2013 9:15 AM To: [email protected] Subject: [mssms] RE: MS13-052 (KB2840628) What are the reported issues? From: [email protected] [mailto:[email protected]] On Behalf Of Jason Sandys Sent: Saturday, July 13, 2013 3:42 PM To: [email protected] Subject: [mssms] MS13-052 (KB2840628) Received official confirmation that MS13-052 (KB2840628) causes issues with ConfigMgr 2012 (and maybe 2007). It is being actively investigated so you may want to hold off on installing it on your servers (workstations should be fine). There are known work-arounds for two of the issues caused (I think Marcum was/is going to blog with more details). J

