CVE-2026-11728

published 2026-09-15

CVE-2026-11728: IBM MQ 9.1.0.0 through 9.1.0.37 LTS, 9.2.0.0 through 9.2.0.43 LTS, 9.3.0.0 through 9.3.0.41 LTS, 9.3.0.0 through 9.3.5.1 CD, 9.4.0.0 through 9.4.0.25 LTS…

Priority P3 46 high 8.1 CVSS 3.1

AV N AC H PR N UI N S U C H I H A H

IBM MQ 9.1.0.0 through 9.1.0.37 LTS, 9.2.0.0 through 9.2.0.43 LTS, 9.3.0.0 through 9.3.0.41 LTS, 9.3.0.0 through 9.3.5.1 CD, 9.4.0.0 through 9.4.0.25 LTS, 9.4.0.0 through 9.4.5.1 CD, and 10.0.0.0 could allow a remote attacker to cause a denial of service or potentially execute arbitrary code in the client due to a heap buffer overflow when receiving messages from a malicious queue manager or through a man-in-the-middle attack.

Affected

5 ranges

Vendor	Product	Version range	Fixed in
ibm	mq	—	—
ibm	mq	9.1.0.0 – 9.1.0.37 LTS	—
ibm	mq	9.2.0.0 – 9.2.0.43 LTS	—
ibm	mq	9.3.0.0 – 9.3.0.41 LTS	—
ibm	mq	9.4.0.0 – 9.4.0.25 LTS	—

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CWE-787