Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-12538— IBM MQ Appliance is affected by an improper validation vulnerability

Quick assessment

Affected
IBM MQ Appliance
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 9.4.0.0 至 9.4.0.26、9.4.1.0 至 9.4.5.3，以及 10.0.0.1 至 10.0.0.5 版本中，由于对消息头结构长度字段的验证不当，可能导致已认证的攻击者获取敏感信息或引发拒绝服务。

CVSS 5.4 · Medium
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-12538

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
IBM MQ Appliance is affected by an improper validation vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
IBM MQ 9.4.0.0 to 9.4.0.26, 9.4.1.0 to 9.4.5.3, and 10.0.0.1 to 10.0.0.5 could allow an authenticated attacker to obtain sensitive information or cause a denial of service due to improper validation of message header structure length fields.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
缓冲区下溢
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
IBM MQ Appliance 9.4.0.0 ~ 9.4.0.26 cpe:2.3:a:ibm:mq_appliance:9.4:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-12538

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-12538

请登录查看更多情报信息。

Other References for CVE-2026-12538 (1)

Same Patch Batch · IBM · 2026-11-04 · 27 CVEs total

CVE-2026-82418 9.8 CRITICAL IBM Watson Speech Services Cartridge is vulnerable to a Use After Free condition in crypto
CVE-2026-13292 8.8 HIGH IBM MQ Managed File Transfer is affected by an arbitrary code execution vulnerability
CVE-2026-11376 8.8 HIGH IBM MQ is affected by a denial of service vulnerability
CVE-2026-11724 8.5 HIGH IBM MQ Managed File Transfer is affected by an arbitrary code execution vulnerability
CVE-2026-13271 8.1 HIGH IBM MQ Managed File Transfer is affected by a denial of service vulnerability
CVE-2026-12356 7.5 HIGH IBM MQ Managed File Transfer is affected by an arbitrary code execution vulnerability
CVE-2026-10859 7.5 HIGH IBM MQ XMS .NET client is affected by an arbitrary code execution vulnerability
CVE-2026-17493 7.5 HIGH IBM Watson Speech Services Cartridge is vulnerable to a D.O.S. in Unpacker.
CVE-2026-13289 7.1 HIGH IBM MQ Managed File Transfer is vulnerable to XML external entity injection
CVE-2026-13284 7.1 HIGH IBM MQ Managed File Transfer is vulnerable to XML external entity injection
CVE-2026-18142 7.1 HIGH IBM MQ is affected by a denial of service vulnerability
CVE-2026-110282 6.5 MEDIUM Multiple vulnerabilities that affects IBM Db2 Genius Hub
CVE-2026-16725 6.5 MEDIUM IBM Watson Speech Services Cartridge is vulnerable to a Path Traversal in LangSmith
CVE-2026-14252 6.2 MEDIUM IBM MQ is affected by a pasword disclosure vulnerability in the runmqccred utility
CVE-2026-110281 5.9 MEDIUM Multiple vulnerabilities that affects IBM Db2 Genius Hub
CVE-2026-108588 5.4 MEDIUM Multiple vulnerabilities that affects IBM Db2 Genius Hub
CVE-2026-12550 5.4 MEDIUM IBM MQ is affected by a denial of service vulnerability
CVE-2026-19319 5.3 MEDIUM IBM Watson Speech Services Cartridge is vulnerable to an Out-of-bounds Read in Onnx
CVE-2026-108536 4.6 MEDIUM Multiple vulnerabilities that affects IBM Db2 Genius Hub
CVE-2026-110283 4.3 MEDIUM Multiple vulnerabilities that affects IBM Db2 Genius Hub

Showing top 20 of 27 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: MQ Appliance
Same vendor: IBM
Same weakness: CWE-124