CVE-2026-10747

IBM MQ Appliance is affected by a heap buffer overflow vulnerability in protocol message processing

State: Published
Severity: 10.0 Critical
Published: Sep 18, 2026
Updated: Sep 21, 2026
Reserved: Jun 3, 2026

Description

IBM MQ Appliance could allow a remote attacker to cause a denial of service or potentially execute arbitrary code due to a heap buffer overflow in protocol message processing before authentication.

Scores

CVSS	Score	Vector	Source
3.1	10.0 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H	ibm

Weaknesses

CWE-122 Heap-based Buffer Overflow

Affected Products

Product	Versions
MQ ApplianceIBM	9.4 LTS through 9.4.0.0 to 9.4.0.25Affected 9.4 CD through 9.4.1.0 to 9.4.5.2Affected 10.0.0.0 through 10.0.0.1 onlyAffected

References

https://www.ibm.com/support/pages/node/7284690vendor-advisorypatch

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