IBM Support

Security Bulletin: IBM MQ Appliance is affected by weak cryptographic algorithms (CVE-2018-1665)

Security Bulletin


IBM MQ Appliance has addressed the following weak cryptographic algorithms vulnerability.

Vulnerability Details

CVEID: CVE-2018-1665
DESCRIPTION: IBM WebSphere DataPower Appliances uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information.
CVSS Base Score: 5.9
CVSS Temporal Score: See for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)

Affected Products and Versions

IBM MQ Appliance 8.0
Maintenance levels between and

IBM MQ Appliance 9.0.x Continuous Delivery (CD) Release
Continuous delivery updates 9.0.1 and 9.0.5

IBM MQ Appliance 9.1 Long Term Support (LTS) Release
Maintenance level


IBM MQ Appliance 8.0
Apply fixpack or later.

IBM MQ Appliance 9.0.x Continuous Delivery (CD) Release
Apply Long Term Support (LTS) Release , or 9.1.1 Continuous Delivery Release or later.

IBM MQ Appliance 9.1 Long Term Support (LTS) Release
Apply fixpack or later.

Workarounds and Mitigations


Get Notified about Future Security Bulletins




Contact McNamee, Bill and Rocks, Jonathan for acknowledgement information

Change History

20 Dec 2018 : Original version published

*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.

Internal Use Only

PSIRT advisory 12325
PSIRT product record 119337

Coordinate with DP PR:116561

[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SS5K6E","label":"IBM MQ Appliance"},"Component":"","Platform":[{"code":"PF004","label":"Appliance"}],"Version":"All Versions","Edition":"","Line of Business":{"code":"LOB15","label":"Integration"}}]

Document Information

Modified date:
04 January 2019