IBM MQ 9.0 LTS, 9.1 LTS, 9.2 LTS, 9.3 LTS and 9.3 CD, in certain configurations, is vulnerable to a denial of service attack caused by an error processing messages when an API Exit using MQBUFMH is used. IBM X-Force ID: 290259.

IBM MQ 9.0 LTS, 9.1 LTS, 9.2 LTS, 9.3 LTS, 9.2 CD, and 9.3 CD and IBM MQ Appliance 9.2 LTS, 9.3 LTS, 9.2 CD, and 9.2 LTS, under certain configurations, is vulnerable to a denial of service attack caused by an error processing messages. IBM X-Force ID: 250397.

IBM MQ 8.0, 9.0, 9.1, 9.2, and 9.3 could disclose sensitive user information from a trace file if that functionality has been enabled. IBM X-Force ID: 251358.

IBM MQ 8.0.0, 9.0.0, 9.1.0, 9.2.0, 9.3.0 Managed File Transfer could allow a local user to obtain sensitive information from diagnostic files. IBM X-Force ID: 238206.

IBM MQ 8.0, 9.0 LTS, 9.1 CD, 9.1 LTS, 9.2 CD, and 9.2 LTS could allow an authenticated and authorized user to cause a denial of service to the MQTT channels. IBM X-Force ID: 228335.

"IBM MQ Appliance 9.2 CD, 9.2 LTS, 9.3 CD, and LTS 9.3 does not invalidate session after logout which could allow an authenticated user to impersonate another user on the system. IBM X-Force ID: 235532."

IBM MQ 8.0, (9.0, 9.1, 9.2 LTS), and (9.1 and 9.2 CD) are vulnerable to an XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources. IBM X-Force ID: 226339.

IBM MQ Appliance 9.2 CD and 9.2 LTS could allow an attacker to enumerate account credentials due to an observable discrepancy in valid and invalid login attempts. IBM X-Force ID: 220487.

IBM MQ Appliance 9.2 CD and 9.2 LTS are vulnerable to a denial of service in the Login component of the application which could allow an attacker to cause a drop in performance.

IBM MQ Appliance 9.2 CD and 9.2 LTS could allow a local privileged user to inject and execute malicious code. IBM X-Force ID: 212441.