The Cisco VCS seems to be affected by the (generic) Linux leap second bug!
We noticed that we had some (not all) VCSs with a load of >100.
I would recomend as a quick fix to immidiate reboot you VCSs!
Also check your other linux systems. Video and non video related. I looked at some TC/TE (E20, C20, ...) video codecs
but I did not notice any to be affected, but I would not be surprised if there are some.
See also (this is generic linux info, I would still recommend just to reboot the VCS!)
The cisco bug id is CSCua78996 (though its currently not public as it looks, at least I do not find it)
some Java related info: