CVE-2026-11381 IBM MQ - Denial of Service & Remote Code Execution

IBM MQ contains a denial of service and potential remote code execution caused by improper validation of message distribution list structures, letting authenticated attackers disrupt service or execute code.

CVSS base score 8.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.33% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Denial of Service
Impact
Denial Of Service, Remote Code Execution
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
18 September 2026
Updated
15 October 2026
Weakness
CWE-122

Vendor fix

Update to the latest available version.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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