CVE-2026-12550— IBM MQ is affected by a denial of service vulnerability
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 9.2.0.0 至 9.2.0.44 LTS、9.3.0.0 至 9.3.0.42 LTS、9.4.0.0 至 9.4.0.26 LTS、9.4.0.0 至 9.4.5.1 CD，以及 10.0.0.0 至 10.0.0.5 LTS 和 CD 版本，可能允许已认证的攻击者因消息选择参数验证不当而获取敏感信息或导致拒绝服务。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-12550
Vulnerability Information
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Vulnerability Title
IBM MQ is affected by a denial of service vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
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 obtain sensitive information or cause a denial of service due to improper validation of message selection parameters.
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
堆缓冲区溢出
Source: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-12550
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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No public POC found.
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Other References for CVE-2026-12550 (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-2026-12538 | 5.4 MEDIUM | IBM MQ Appliance is affected by an improper validation 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
-
CVE-2026-10859
IBM MQ XMS .NET client is affected by an arbitrary code exec -
CVE-2026-11376
IBM MQ is affected by a denial of service vulnerability -
CVE-2026-11724
IBM MQ Managed File Transfer is affected by an arbitrary cod -
CVE-2026-12356
IBM MQ Managed File Transfer is affected by an arbitrary cod -
CVE-2026-13271
IBM MQ Managed File Transfer is affected by a denial of serv
Same vendor: IBM
-
CVE-2026-16725
IBM Watson Speech Services Cartridge is vulnerable to a Path -
CVE-2026-19319
IBM Watson Speech Services Cartridge is vulnerable to an Out -
CVE-2026-82418
IBM Watson Speech Services Cartridge is vulnerable to a Use -
CVE-2026-17493
IBM Watson Speech Services Cartridge is vulnerable to a D.O. -
CVE-2026-105702
Multiple vulnerabilities that affects IBM Db2 Genius Hub
Same weakness: CWE-122
-
CVE-2026-62365
Wazuh: Heap Buffer Overflow in DecodeWinevt() join_data Accu -
CVE-2026-122126
reSIProcate reTurn client through 1.14.0 Heap Buffer Overflo -
CVE-2026-121964
FreeRDP before 3.32.2 Heap Buffer Overflow via rpc_client_re -
CVE-2026-121958
FreeRDP through 3.32.1 Heap Out-of-Bounds Write via RDPGFX H -
CVE-2026-121950
FreeRDP before 3.32.2 Heap Overflow via RDPGFX CREATE_SURFAC