Dear Zen Master,
Yesterday 3rd of May, it was released a set of OpenSSL vulnerabilities (2 of them with high severity) where a Man In The Middle attack could decrypt traffic when the SSL connection uses certain ciphers. More information here.
In detail, the vulnerabilities released and checked for Zen Load Balancer Editions are:
Zen Load Balancer Enterprise & Community Editions needs the OpenSSL updates that we provide with any of our Support Plans. Please contact with us for any doubt.
Enjoy a secured Load Balancing!