CVE-2026-10859High· 7.5▾ TwilightIBM MQ 9.2.0.0 through 9.2.0.44 LTS, 9.3.0.0 through 9.3.0.42 LTS, 9.4.0.0 through 9.4.0.26 LTS, 9.4.0.0 through 9.4.5.1 CD, and 10.0.0.0 through 10.0.0.5 LTS and CD could allow an authenticated attacker to execute arbitrary code on cons…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 41.3 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Exploit-prediction probability, daily snapshots since Nov 6.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.3%
IBM MQ 9.2.0.0 through 9.2.0.44 LTS, 9.3.0.0 through 9.3.0.42 LTS, 9.4.0.0 through 9.4.0.26 LTS, 9.4.0.0 through 9.4.5.1 CD, and 10.0.0.0 through 10.0.0.5 LTS and CD could allow an authenticated attacker to execute arbitrary code on consumer applications due to insecure deserialization of ObjectMessage payloads.
MQ >= 9.2.0.0 <= 9.2.0.44MQ >= 9.3.0.0 <= 9.3.0.42MQ >= 9.4.0.0 <= 9.4.0.26MQ >= 9.4.0.0 <= 9.4.5.1MQ >= 10.0.0.0 <= 10.0.0.5This issue was addressed under Known Issue DT472703.
IBM MQ version 9.2 LTS
Apply cumulative security update 9.2.0.46 https://www.ibm.com/support/pages/downloading-ibm-mq-92-lts
IBM MQ version 9.3 LTS
Apply cumulative security update 9.3.0.43 https://www.ibm.com/support/pages/downloading-ibm-mq-93-lts
IBM MQ version 9.4 LTS
Apply fix pack 9.4.0.30 https://www.ibm.com/support/pages/downloading-ibm-mq-94
IBM MQ version 10.0.LTS
Upgrade to IBM MQ version 10.0.0.6 https://www.ibm.com/support/pages/downloading-ibm-mq-100
IBM MQ version 9.4 CD and 10.0 CD
Upgrade to IBM MQ version 10.0.1.0 https://www.ibm.com/support/pages/downloading-ibm-mq-100
Connected by shared product, vendor, weakness, or advisory.
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