IBM WebSphere MQ 6.0 before 6.0.2.11 and 7.0 before 7.0.1.5 does not use the CRL Distribution Points (CDP) certificate extension, which might allow man-in-the-middle attackers to spoof an SSL partner via a revoked certificate for a (1) client, (2) queue manager, or (3) application.
https://exchange.xforce.ibmcloud.com/vulnerabilities/68229
http://www.ibm.com/support/docview.wss?uid=swg1IZ92813