IBM MQ 9.1 < 9.1.0.38 LTS / 9.2 < 9.2.0.44 LTS / 9.3 < 10.0.0.5 CD / 9.3 < 9.3.0.42 LTS / 9.4 < 9.4.0.26 LTS (7284943)

high Nessus Plugin ID 365978

Synopsis

The remote web server is affected by a vulnerability.

Description

The version of IBM MQ Server running on the remote host is affected by a vulnerability as referenced in the 7284943 advisory.

- 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. (CVE-2026-11728)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to IBM MQ 10.0.0.5 CD, 9.1.0.38 LTS, 9.2.0.44 LTS, 9.3.0.42 LTS, 9.4.0.26 LTS or later.

See Also

https://www.ibm.com/support/pages/node/7284943

Plugin Details

Severity: High

ID: 365978

File Name: ibm_mq_7284943.nasl

Version: 1.1

Type: Local

Agent: windows, macosx, unix

Family: Misc.

Published: 10/14/2026

Updated: 10/14/2026

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.23

CVSS v2

Risk Factor: High

Base Score: 7.6

Temporal Score: 5.6

Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-11728

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.1

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:ibm:mq, cpe:/a:ibm:websphere_mq

Required KB Items: installed_sw/IBM WebSphere MQ

Exploit Ease: No known exploits are available

Patch Publication Date: 9/14/2026

Vulnerability Publication Date: 9/14/2026

Reference Information

CVE: CVE-2026-11728