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CVE-2026-11378— IBM MQ queue manager is vulnerable to remote code execution

Quick assessment

Affected
IBM MQ
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

IBM MQ could allow an authenticated attacker to cause a denial of service or potentially execute arbitrary code due to an integer overflow in distribution list processing.

CVSS 8.8 · High
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I. Basic Information for CVE-2026-11378

Vulnerability Information

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Vulnerability Title
IBM MQ queue manager is vulnerable to remote code execution
Source: CVE Program / CVE List V5
Vulnerability Description
IBM MQ could allow an authenticated attacker to cause a denial of service or potentially execute arbitrary code due to an integer overflow in distribution list processing.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
整数溢出或超界折返
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
IBM MQ 9.1.0.0 ~ 9.1.0.37 LTS cpe:2.3:a:ibm:mq:9.1.0.0:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-11378

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III. Intelligence Information for CVE-2026-11378

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Other References for CVE-2026-11378 (1)

Same Patch Batch · IBM · 2026-09-18 · 31 CVEs total

CVE-2026-10747 10.0 CRITICAL IBM MQ Appliance is affected by a heap buffer overflow vulnerability in protocol message p
CVE-2025-15399 10.0 CRITICAL Multiple vulnerabilities affect IBM License Key Server Administration and Reporting Tool a
CVE-2026-10858 9.9 CRITICAL IBM MQ for HPE NonStop is vulnerable to a denial of service attack
CVE-2026-11381 8.8 HIGH IBM MQ for HPE NonStop is vulnerable to a denial of service issue
CVE-2026-11375 8.8 HIGH IBM MQ queue manager is vulnerable to remote code execution
CVE-2026-10575 8.8 HIGH IBM MQ queue manager is vulnerable to remote code execution
CVE-2025-14754 8.8 HIGH IBM Cloud Pak for Data is vulnerable to OS command injection
CVE-2026-10027 8.1 HIGH IBM MQ queue manager is vulnerable to unauthenticated remote code execution
CVE-2026-10853 7.5 HIGH IBM MQ queue manager is vulnerable to remote code execution
CVE-2025-14753 7.5 HIGH IBM Cloud Pak for Data is vulnerable to path traversal
CVE-2026-10751 7.5 HIGH IBM MQ Java messaging is vulnerable to remote code execution
CVE-2026-10744 7.5 HIGH IBM MQ for HPE NonStop is vulnerable to a issue in MQINQ request validation
CVE-2026-10030 7.1 HIGH IBM MQ Console is vulnerable to privilege escalation
CVE-2025-33141 6.5 MEDIUM IBM QRadar SIEM could allow an authenticated user to obtain sensitive information from bac
CVE-2026-1025 6.1 MEDIUM Multiple vulnerabilities affect IBM License Key Server Administration and Reporting Tool a
CVE-2026-1037 6.1 MEDIUM Multiple vulnerabilities affect IBM License Key Server Administration and Reporting Tool a
CVE-2026-1031 6.1 MEDIUM Multiple vulnerabilities affect IBM License Key Server Administration and Reporting Tool a
CVE-2025-36147 6.1 MEDIUM IBM Financial Transaction Manager for SWIFT Services for Multiplatforms is vulnerable to c
CVE-2024-56344 5.9 MEDIUM IBM Cognos Analytics 12.0.4 and 12.1.3 versions are affected by security vulnerabilities
CVE-2025-33147 5.9 MEDIUM IBM Cognos Analytics versions 12.0.4 and 12.1.3 is affected by security vulnerabilities

Showing top 20 of 31 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: MQ
Same vendor: IBM
Same weakness: CWE-190

V. Comments for CVE-2026-11378

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