IBM Support

Security Bulletin: IBM MQ for HPE NonStop Server is affected by vulnerability CVE-2020-4376

Security Bulletin


IBM MQ for HPE NonStop Server is affected by vulnerability CVE-2020-4376

Vulnerability Details

CVEID:   CVE-2020-4376
DESCRIPTION:   IBM MQ, IBM MQ Appliance, IBM MQ for HPE NonStop could allow an attacker to cause a denial of service caused by an error within the pubsub logic.
CVSS Base score: 5.3
CVSS Temporal Score: See: for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

 Affected Product(s) Version(s)
 IBM MQ for HPE NonStop 8.1.0
 IBM MQ for HPE NonStop 8.0.4


 IBM MQ V8 for HPE NonStop  IT31349  Install Fixpack



Workarounds and Mitigations


Get Notified about Future Security Bulletins




Change History

24 Jun 2020: Initial Publication

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.


According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.

Document Location


[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSKM59","label":"IBM MQ for HPE NonStop"},"Component":"Server","Platform":[{"code":"PF011","label":"HPE NonStop"}],"Version":"8.1","Edition":",,,,,,,,,,,,,,,","Line of Business":{"code":"LOB15","label":"Integration"}}]

Document Information

Modified date:
30 June 2020