CVE-2025-3631 Details
Description
An IBM MQ 9.3 and 9.4 Client connecting to an MQ Queue Manager can cause a SIGSEGV in the AMQRMPPA channel process terminating it.
A denial-of-service vulnerability has been identified in IBM MQ Client versions 9.3 and 9.4. When the client connects to an MQ Queue Manager, it can cause a segmentation fault (SIGSEGV) in the AMQRMPPA channel process, leading to the termination of that process.
Users can upgrade to IBM MQ Appliance cumulative security update 9.4.0.12 or 9.4.3.0, depending on their current version. Instructions for downloading these updates are available on the IBM Support Fix Central website.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jul 11, 2025References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://www.ibm.com/support/pages/node/7237025 | [email protected] | Vendor Advisory |
| https://www.ibm.com/support/pages/node/7238310 | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-416 | Use After Free | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| ibm mq appliance | >= 9.3.2, <= 9.3.5.2 >= 9.4.0.0, < 9.4.0.12 >= 9.4.0.0, < 9.4.3 >= 9.4.1.0, < 9.4.3.0 |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jul 23, 2025 | Initial Analysis | [email protected] |
| Jul 11, 2025 | New CVE Received | [email protected] |