Under non-standard configurations, IBM WebSphere MQ might send password data in clear text over the network. This data could be intercepted using man in the middle techniques.

IBM WebSphere MQ 8.0 could allow an authenticated user to crash the MQ channel due to improper data conversion handling. IBM Reference #: 1998661.

Cross-site scripting (XSS) vulnerability in MQ XR WebSockets Listener in WMQ Telemetry in IBM WebSphere MQ 8.0 before 8.0.0.2 allows remote attackers to inject arbitrary web script or HTML via a crafted URI that is included in an error response.

IBM WebSphere MQ 6.0 before 6.0.2.8 and 7.0 before 7.0.1.0 does not properly handle long group names, which might allow local users to gain privileges by leveraging combinations of group names with the same initial substring.

Heap-based buffer overflow in the client in IBM WebSphere MQ 6.0 before 6.0.2.7 and 7.0 before 7.0.1.0 allows local users to gain privileges via crafted SSL information in a Client Channel Definition Table (CCDT) file.

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.

Heap-based buffer overflow in IBM WebSphere MQ 6.0 before 6.0.2.11 and 7.0 before 7.0.1.5 allows remote authenticated users to execute arbitrary code or cause a denial of service (queue manager crash) by inserting an invalid message into the queue.

IBM WebSphere MQ 6.0 before 6.0.2.9 and 7.0 before 7.0.1.1 does not encrypt the username and password in the security parameters field, which allows remote attackers to obtain sensitive information by sniffing the network traffic from a .NET client application.

IBM WebSphere MQ 6.x before 6.0.2.10 and 7.x before 7.0.1.3 allows remote attackers to spoof X.509 certificate authentication, and send or receive channel messages, via a crafted Subject Distinguished Name (DN) value in a certificate.

IBM WebSphere MQ 6.x through 6.0.2.7, 7.0.0.0, 7.0.0.1, 7.0.0.2, and 7.0.1.0, when read ahead or asynchronous message consumption is enabled, allows attackers to have an unspecified impact via unknown vectors, related to a "memory overwrite" issue.

Buffer overflow in the queue manager in IBM WebSphere MQ 6.x before 6.0.2.7 and 7.x before 7.0.1.0 allows remote attackers to execute arbitrary code via a crafted request.