CVE-2026-10743 IBM MQ - Denial of Service

IBM MQ contains a denial of service caused by improper validation of buffer sizes in MQOPEN operations, letting authenticated attackers cause service disruption or memory corruption, exploit requires authentication.

CVSS base score 8.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
View the NVD record ↗

Details

Type
Denial of Service
Impact
Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
19 October 2026
Updated
20 October 2026
Weakness
CWE-1223

Vendor fix

Update to the latest version of IBM MQ.

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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