There is a security update for OpenSSL, which is marked as critical and recoemmended to update as soon as possible. You can read more about this at http://www.openssl.org/news/secadv_20140605.txt.

All the servers which come under Per Server Managed Plan are patched already

We are now pushing updates to the other managed servers now. Please email support[at]nixtree.com, if you need to know whether the update has been pushed to your servers already.