Denial of Service Vulnerability in IBM MQ
CVE-2026-11381

8.8HIGH

Key Information:

Vendor

IBM
Status
MQ For HP Nonstop
Vendor
CVE Published:
18 September 2026

What is CVE-2026-11381?

IBM MQ is susceptible to a vulnerability that could allow an authorized attacker to disrupt service or possibly execute arbitrary code. This risk arises from inadequate verification of message distribution list structures, which, if exploited, could lead to significant impacts on system functionality.

Affected Version(s)

MQ for HPE NonStop 8.1.0 <= 8.1.0.40

References

https://www.ibm.com/support/pages/node/7287706
vendor-advisorypatch

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.