The affected software includes versions that are no longer supported. Visit the Software Support Lifecycle site for information about supported BES versions. See the Resolution section of this advisory for more information on upgrading to a supported version for which a security software update is available. Non Affected Software: BlackBerry Device Software, Desktop Software, Enterprise Service 10, Enterprise Server Service 10 and BlackBerry Enterprise Server Server 5.0.4 MR1 and later for Microsoft Exchange, IBM Lotus Domino and Novell Groupwise.”]
Source: https://gizmodo.com/blackberry-security-flaw-could-compromise-enterprise-se-5985255