---
id: CVE-2026-11727
title: >-
  IBM MQ for HPE NonStop 8.1.0 through 8.1.0.40 IBM MQ C client could allow a
  remote attacker to cause a denial of service or potentially execute arbitrary
  code due to improper validation of queue manager responses when requesting AMS
  poli…
summary: >-
  IBM MQ for HPE NonStop 8.1.0 through 8.1.0.40 IBM MQ C client could allow a
  remote attacker to cause a denial of service or potentially execute arbitrary
  code due to improper validation of queue manager responses when requesting AMS
  poli…
severity: high
cvss: 8.1
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-122
vendor: IBM
product: MQ for HPE NonStop
affected:
  - mq_for_hpe_nonstop >= 8.1.0 <= 8.1.0.40
published: '2026-09-18'
updated: '2026-09-19'
sourceUpdated: '2026-09-19T15:16:57.890'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-11727'
references:
  - url: 'https://www.ibm.com/support/pages/node/7287708'
    label: psirt@us.ibm.com
tags:
  - nvd
  - cve.org
epss: 0.00608
epssPercentile: 0.47477
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-19T13:42:31.444904Z'
ingestedAt: '2026-09-18T19:49:30.596Z'
---

## Overview

IBM MQ for HPE NonStop 8.1.0 through 8.1.0.40 IBM MQ C client could allow a remote attacker to cause a denial of service or potentially execute arbitrary code due to improper validation of queue manager responses when requesting AMS policy data.

## Remediation

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