IBM MQ Appliance is affected by a heap buffer overflow vulnerability in protocol message processing
Summary
| CVE | CVE-2026-10747 |
|---|---|
| State | PUBLISHED |
| Assigner | ibm |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-09-18 16:17:04 UTC |
| Updated | 2026-09-19 04:17:50 UTC |
| 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. |
Risk And Classification
Primary CVSS: v3.1 10 CRITICAL from [email protected]
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Problem Types: CWE-122 | CWE-122 CWE-122 Heap-based Buffer Overflow
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 10 | CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
| 3.1 | CNA | CVSS | 10 | CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
CVSS v3.1 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | IBM | MQ Appliance | affected 9.4 LTS 9.4.0.0 to 9.4.0.25 custom | Not specified |
| CNA | IBM | MQ Appliance | affected 9.4 CD 9.4.1.0 to 9.4.5.2 custom | Not specified |
| CNA | IBM | MQ Appliance | affected 10.0.0.0 10.0.0.1 only semver | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| www.ibm.com/support/pages/node/7284690 | [email protected] | www.ibm.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Additional Advisory Data
Solutions
CNA: 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.