Does the Heartbleed bug affect Collaboration Services or any of its components?
Details of the OpenSSL Heartbleed bug can be seen here:
Collaboration Services does not use OpenSSL, and thus is not affected by the Heartbleed vulnerability.
Collaboration Services does run on Windows and Windows is not affected by the heartbleed bug.
For more information on please refer to http://blogs.technet.com/b/erezs_iis_blog/archive/2014/04/09/information-abou