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CVE-2026-11727— IBM MQ for HPE NonStop is vulnerable to a denial of service issue

Quick assessment

Affected
IBM MQ for HPE NonStop
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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.

CVSS 8.1 · High

Possible ATT&CK Techniques 1 AI

T1210 · Exploitation of Remote Services

Affected Version Matrix 1

VendorProduct Version RangeStatus
IBM MQ for HPE NonStop 8.1.0≤ 8.1.0.40 affected
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I. Basic Information for CVE-2026-11727

Vulnerability Information
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Vulnerability Title
IBM MQ for HPE NonStop is vulnerable to a denial of service issue
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
堆缓冲区溢出
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
IBM MQ for HPE NonStop 8.1.0 ~ 8.1.0.40 cpe:2.3:a:ibm:mq_for_hpe_nonstop:8.1.0:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-11727

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III. Intelligence Information for CVE-2026-11727

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Other References for CVE-2026-11727 (1)

Same Patch Batch · IBM · 2026-09-18 · 90 CVEs total

CVE-2025-15399 10.0 CRITICAL Multiple vulnerabilities affect IBM License Key Server Administration and Reporting Tool a
CVE-2026-10747 10.0 CRITICAL IBM MQ Appliance is affected by a heap buffer overflow vulnerability in protocol message p
CVE-2026-84064 9.9 CRITICAL IBM Guardium Data Protection is affected by multiple vulnerabilities.
CVE-2026-84075 9.9 CRITICAL IBM Guardium Data Protection is affected by multiple vulnerabilities.
CVE-2026-10858 9.9 CRITICAL IBM MQ for HPE NonStop is vulnerable to a denial of service attack
CVE-2026-80442 9.9 CRITICAL IBM Guardium Data Protection is affected by multiple vulnerabilities.
CVE-2026-84078 9.9 CRITICAL IBM Guardium Data Protection is affected by multiple vulnerabilities.
CVE-2026-82967 9.8 CRITICAL IBM Guardium Data Protection is affected by multiple vulnerabilities.
CVE-2026-80441 9.8 CRITICAL IBM Guardium Data Protection is affected by multiple vulnerabilities.
CVE-2026-81657 9.8 CRITICAL IBM Guardium Data Protection is affected by multiple vulnerabilities.
CVE-2026-84082 9.8 CRITICAL IBM Guardium Data Protection is affected by multiple vulnerabilities.
CVE-2026-82340 9.8 CRITICAL IBM Guardium Data Protection is affected by multiple vulnerabilities.
CVE-2026-82832 9.6 CRITICAL IBM Guardium Data Protection is affected by multiple vulnerabilities.
CVE-2026-75878 9.1 CRITICAL IBM Sterling File Gateway is Vulnerable to Authentication Bypass
CVE-2026-84073 9.1 CRITICAL IBM Guardium Data Protection is affected by multiple vulnerabilities.
CVE-2026-84031 9.0 CRITICAL IBM Guardium Data Protection is affected by multiple vulnerabilities.
CVE-2026-84070 8.9 HIGH IBM Guardium Data Protection is affected by multiple vulnerabilities.
CVE-2026-84106 8.9 HIGH IBM Guardium Data Protection is affected by multiple vulnerabilities.
CVE-2026-84074 8.9 HIGH IBM Guardium Data Protection is affected by multiple vulnerabilities.
CVE-2026-82887 8.8 HIGH IBM Guardium Data Protection is affected by multiple vulnerabilities.

Showing top 20 of 90 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: MQ for HPE NonStop
Same vendor: IBM
Same weakness: CWE-122

V. Comments for CVE-2026-11727

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