---
id: CVE-2026-10747
title: >-
  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.
summary: >-
  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.
severity: critical
cvss: 10
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H'
cwe:
  - CWE-122
vendor: IBM
product: MQ Appliance
affected:
  - mq_appliance >= 9.4 LTS <= 9.4.0.0 to 9.4.0.25
  - mq_appliance >= 9.4 CD <= 9.4.1.0 to 9.4.5.2
  - mq_appliance >= 10.0.0.0 <= 10.0.0.1 only
published: '2026-09-18'
updated: '2026-09-21'
sourceUpdated: '2026-09-21T13:17:07.147'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-10747'
references:
  - url: 'https://www.ibm.com/support/pages/node/7284690'
    label: psirt@us.ibm.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-09-19T03:56:46.797549Z'
epss: 0.0057
epssPercentile: 0.44928
ingestedAt: '2026-09-18T16:45:41.380Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.