CVE-2026-10747

IBM MQ Appliance is affected by a heap buffer overflow vulnerability in protocol message processing

Published Sep 18, 2026 CVSS 3.1 · 10 Critical EPSS < 1% KEV · Not listed

Description

IBM MQ Appliance could allow a remote attacker to cause a denial of service or potentially execute arbitrary code due to a heap buffer overflow in protocol message processing before authentication.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

IBM

MQ Appliance

affected

Version	Status	Constraints
`9.4 LTS`	affected	≤ 9.4.0.0 to 9.4.0.25
`9.4 CD`	affected	≤ 9.4.1.0 to 9.4.5.2
`10.0.0.0`	affected	≤ 10.0.0.1 only

No data.

Vendor Product Versions

Ibm

Mq Appliance

Version	Status	Scheme	Platform
`[9.4.0.0,9.4.0.25]`	affected	generic	—
`[9.4.1.0,9.4.5.2]`	affected	generic	—
`[10.0.0.0,10.0.0.1]`	affected	generic	—

Remediation

Vendor Solution

This vulnerability is addressed under APAR DT472411 IBM strongly recommends addressing the vulnerability now. IBM MQ Appliance version 9.4 LTS Apply IBM MQ Appliance fix pack 9.4.0.26 https://www.ibm.com/support/fixcentral/swg/selectFixes , or later firmware. IBM MQ Appliance version 9.4 CD - M2003 Upgrade to IBM MQ Appliance 10.0.0.5 https://www.ibm.com/support/fixcentral/swg/selectFixes , or later firmware. IBM MQ Appliance version 9.4 CD - M2002 Apply IBM MQ Appliance cumulative security update 9.4.5.3 https://www.ibm.com/support/fixcentral/swg/selectFixes , or later firmware. IBM MQ Appliance version 10 LTS Apply IBM MQ Appliance fix pack 10.0.0.5 https://www.ibm.com/support/fixcentral/swg/selectFixes , or later firmware.

Tracking

Advisories

No advisories available

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.945% probability within 30 days)

Exploitation none

Automatable yes

Technical Impact total

References

Link	Providers
https://www.ibm.com/support/pages/node/7284690

History

Sep 21, 2026 1:30 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Sep 18, 2026 4:00 PM Description updated. Title updated. First appearance in the feed. Weaknesses updated. Affected versions updated. Affected vendors updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		IBM MQ Appliance could allow a remote attacker to cause a denial of service or potentially execute arbitrary code due to a heap buffer overflow in protocol message processing before authentication.
Title		IBM MQ Appliance is affected by a heap buffer overflow vulnerability in protocol message processing
First Time appeared		Ibm Ibm mq Appliance
Weaknesses		CWE-122
CPEs		cpe:2.3:a:ibm:mq_appliance:10.0.0.0:::::::* cpe:2.3:a:ibm:mq_appliance:10.0.0.1:::::::* cpe:2.3:a:ibm:mq_appliance:9.4.0.0:::::::* cpe:2.3:a:ibm:mq_appliance:9.4.0:::::::* cpe:2.3:a:ibm:mq_appliance:9.4.1.0:::::::* cpe:2.3:a:ibm:mq_appliance:9.4:::::::*
Vendors & Products		Ibm Ibm mq Appliance
References		https://www.ibm.com/support/pages/node/7284690
Metrics		cvssV3_1 `{'score': 10, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H'}`