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CVE-2026-18583— mz-automation libiec61850 MMS Request mms_mapping.c checkDataSetAccess out-of-bounds

Quick assessment

Affected
mz-automation libiec61850
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.

MZ Automation GmbH libiec61850是德国MZ Automation GmbH公司开源的一套支持IEC 61850标准的工业通信组件。 MZ Automation GmbH libiec61850 1.6.1及之前版本存在缓冲区错误漏洞，该漏洞源于MMS Request Handler组件的src/iec61850/server/mms_mapping/mms_mapping.c文件中的checkDataSetAccess函数存在越界读取问题，可能导致远程攻击者利用该漏洞发起攻击。

CVSS 5.3 · Medium EPSS 0.86% · P57

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 3

VendorProduct Version RangeStatus
mz-automation libiec61850 1.6.0 affected
1.6.1 affected
1.6.2 unaffected
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I. Basic Information for CVE-2026-18583

Vulnerability Information
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Vulnerability Title
mz-automation libiec61850 MMS Request mms_mapping.c checkDataSetAccess out-of-bounds
Source: CVE Program / CVE List V5
Vulnerability Description
A weakness has been identified in mz-automation libiec61850 up to 1.6.1. This issue affects the function checkDataSetAccess of the file src/iec61850/server/mms_mapping/mms_mapping.c of the component MMS Request Handler. This manipulation causes out-of-bounds read. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks. Upgrading to version 1.6.2 is capable of addressing this issue. Patch name: 062062daf4cb50c7aa76e01d6fb4d58fc9278a7d. Upgrading the affected component is recommended. The vendor was contacted early about this disclosure.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
MZ Automation GmbH libiec61850 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MZ Automation GmbH libiec61850是德国MZ Automation GmbH公司开源的一套支持IEC 61850标准的工业通信组件。 MZ Automation GmbH libiec61850 1.6.1及之前版本存在缓冲区错误漏洞，该漏洞源于MMS Request Handler组件的src/iec61850/server/mms_mapping/mms_mapping.c文件中的checkDataSetAccess函数存在越界读取问题，可能导致远程攻击者利用该漏洞发起攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
mz-automation libiec61850 1.6.0 cpe:2.3:a:mz-automation:libiec61850:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-18583

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III. Intelligence Information for CVE-2026-18583

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Patches & Fixes for CVE-2026-18583 (1)

Vendor Advisories for CVE-2026-18583 (1)

Vendor Pages for CVE-2026-18583 (2)

Other References for CVE-2026-18583 (1)

IV. Related Vulnerabilities

Same product: libiec61850
Same vendor: mz-automation
Same weakness: CWE-125

V. Comments for CVE-2026-18583

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