CVE-2026-11381

IBM MQ for HPE NonStop is vulnerable to a denial of service issue

Published Sep 18, 2026 CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Description
IBM MQ could allow an authenticated attacker to cause a denial of service or potentially execute arbitrary code due to improper validation of message distribution list structures.

Remediation

Vendor Solution

IBM MQ V8.1 for HPE NonStop 8.1.0.40IT49925Upgrade to CSU 8.1.0.41 IBM strongly recommends addressing this vulnerability now by installing CSU 8.1.0.41.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description IBM MQ could allow an authenticated attacker to cause a denial of service or potentially execute arbitrary code due to improper validation of message distribution list structures.
Title IBM MQ for HPE NonStop is vulnerable to a denial of service issue
First Time appeared Ibm
Ibm mq For Hpe Nonstop
Weaknesses CWE-122
CPEs cpe:2.3:a:ibm:mq_for_hpe_nonstop:8.1.0.40:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_for_hpe_nonstop:8.1.0:*:*:*:*:*:*:*
Vendors & Products Ibm
Ibm mq For Hpe Nonstop
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
ibm
Published
Updated
Sep 19, 2026, 3:56 AM
Reserved
Jun 5, 2026, 12:53 PM
Status
Awaiting Analysis
Published
Sep 18, 2026, 4:17 PM
Modified
Sep 19, 2026, 4:17 AM