---
id: CVE-2026-12150
title: >-
  IBM MQ 9.1.0.0 through 9.1.0.37 LTS, 9.2.0.0 through 9.2.0.43 LTS, 9.3.0.0
  through 9.3.0.41 LTS, 9.3.0.0 through 9.3.5.1 CD, 9.4.0.0 through 9.4.0.25
  LTS, 9.4.0.0 through 9.4.5.1 CD, and 10.0.0.0 could allow a remote attacker
  with a trus…
summary: >-
  IBM MQ 9.1.0.0 through 9.1.0.37 LTS, 9.2.0.0 through 9.2.0.43 LTS, 9.3.0.0
  through 9.3.0.41 LTS, 9.3.0.0 through 9.3.5.1 CD, 9.4.0.0 through 9.4.0.25
  LTS, 9.4.0.0 through 9.4.5.1 CD, and 10.0.0.0 could allow a remote attacker
  with a trus…
severity: high
cvss: 7
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H'
cwe:
  - CWE-121
vendor: IBM
product: MQ
affected:
  - MQ >= 9.1.0.0 <= 9.1.0.37 LTS
  - MQ >= 9.2.0.0 <= 9.2.0.43 LTS
  - MQ >= 9.3.0.0 <= 9.3.0.41 LTS
  - MQ >= 9.3.0.0 <= 9.3.5.1 CD
  - MQ >= 9.4.0.0 <= 9.4.0.25 LTS
  - MQ >= 9.4.0.0 <= 9.4.5.1 CD
  - MQ 10.0.0.0
published: '2026-09-15'
updated: '2026-09-17'
sourceUpdated: '2026-09-17T17:16:38.477'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-12150'
references:
  - url: 'https://www.ibm.com/support/pages/node/7284911'
    label: psirt@us.ibm.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-17T16:22:24.554396Z'
epss: 0.00168
epssPercentile: 0.05409
ingestedAt: '2026-09-15T17:41:02.970Z'
---

## Overview

IBM MQ 9.1.0.0 through 9.1.0.37 LTS, 9.2.0.0 through 9.2.0.43 LTS, 9.3.0.0 through 9.3.0.41 LTS, 9.3.0.0 through 9.3.5.1 CD, 9.4.0.0 through 9.4.0.25 LTS, 9.4.0.0 through 9.4.5.1 CD, and 10.0.0.0 could allow a remote attacker with a trusted TLS client certificate to cause a denial of service and potentially affect memory contents due to improper validation of deeply nested certificate data during TLS certificate processing.

## Remediation

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