IBM MQ Client Vulnerability in Queue Manager Process
CVE-2025-3631

6.5MEDIUM

Key Information:

Vendor

IBM
Status
MQ
MQ Appliance
Vendor
CVE Published:
11 July 2025

What is CVE-2025-3631?

An issue has been identified in IBM MQ versions 9.3 and 9.4, where a client connection to an MQ Queue Manager can trigger a SIGSEGV error in the AMQRMPPA channel process. This results in the termination of the channel process, potentially disrupting messaging operations and affecting application performance. Immediate action is recommended to mitigate this vulnerability and ensure system integrity.

Affected Version(s)

MQ 9.3.2.0 CD <= 9.3.5.1 CD

MQ 9.4.0.0 <= 9.4.2.1 CD

MQ 9.4.0.0 LTS <= 9.4.0.11 LTS

References

https://www.ibm.com/support/pages/node/7238310
vendor-advisory
https://www.ibm.com/support/pages/node/7237025
vendor-advisory

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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CVE-2025-3631 : IBM MQ Client Vulnerability in Queue Manager Process