Home/CVE/An IBM MQ 9.3 and 9.4 Client connecting to an MQ Queue Manager can cause a SIGSEGV in the AMQRMPPA channel process termi
CVE

CVE-2025-3631

An IBM MQ 9.3 and 9.4 Client connecting to an MQ Queue Manager can cause a SIGSEGV in the AMQRMPPA channel process termi

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.

MEDIUM · CVSS 6.5 EPSS 0.00181
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-416Use After Free
▤

Affected Products & Versions

4
ibm mq appliance>= 9.3.2 and <= 9.3.5.2
ibm mq appliance>= 9.4.0.0 and < 9.4.0.12
ibm mq appliance>= 9.4.0.0 and < 9.4.3
ibm mq appliance>= 9.4.1.0 and < 9.4.3.0
▣

Scoring & Timeline

6.5
MEDIUM · CVSS v3.1 · psirt@us.ibm.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD11 Jul 2025 · 07:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://www.ibm.com/support/pages/node/7237025Vendor Advisory
https://www.ibm.com/support/pages/node/7238310Vendor Advisory
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