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CVE-2026-10747

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

Critical10.0EPSS 0.95%
Published
Updated
Reserved
Assigned by
ibm

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.

Timeline

  1. ID reserved

    By ibm

  2. · 4 months later

    Published

  3. · 3 days later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2026-10747, by who scored it
Scored byCVSSScoreVector
ibmCNA (assigner)3.1Critical10.0CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
NVDNVD · Awaiting Analysis3.1Critical10.0CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
EPSS (exploitation in 30 days)
0.95% · top 39% of all CVEs (7 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: yes · Technical impact: total
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 10.0.

Weakness

Affected products

  • IBM · MQ Appliance

    • affected 9.4 LTS – ≤ 9.4.0.0 to 9.4.0.25
    • affected 9.4 CD – ≤ 9.4.1.0 to 9.4.5.2
    • affected 10.0.0.0 – ≤ 10.0.0.1 only

What to do

Solution: This vulnerability is addressed under APAR DT472411 IBM strongly recommends addressing the vulnerability now. IBM MQ Appliance version 9.4 LTS Apply IBM MQ Appliance fix pack 9.4.0.26 https://www.ibm.com/support/fixcentral/swg/selectFixes , or later firmware. IBM MQ Appliance version 9.4 CD - M2003 Upgrade to IBM MQ Appliance 10.0.0.5 https://www.ibm.com/support/fixcentral/swg/selectFixes , or later firmware. IBM MQ Appliance version 9.4 CD - M2002 Apply  IBM MQ Appliance cumulative security update 9.4.5.3 https://www.ibm.com/support/fixcentral/swg/selectFixes , or later firmware. IBM MQ Appliance version 10 LTS Apply IBM MQ Appliance fix pack 10.0.0.5 https://www.ibm.com/support/fixcentral/swg/selectFixes , or later firmware.

References (1)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .