IBM QRadar Suite Software 1.10.12.0 through 1.11.2.0 and IBM Cloud Pak for Security 1.10.0.0 through 1.10.11.0 could allow an authenticated user to cause a denial of service due to improperly validating API data input.
IBM QRadar SIEM does not invalidate session after a logout which could allow a user to impersonate another user on the system.
IBM QRadar Suite allows web pages to be stored locally which can be read by another user on the system.