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CVE-2026-19108— MZ Automation libiec61850 URCB Revalidation reporting.c deleteDataSetValuesShadowBuffer use after free

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 libIEC61850是德国Mz Automation公司的一款用于电力系统通信的协议实现库。 Mz Automation libIEC61850 1.6.1及之前版本存在安全漏洞，该漏洞源于URCB Revalidation组件中src/iec61850/server/mms_mapping/reporting.c文件的deleteDataSetValuesShadowBuffer函数存在释放后重用问题，攻击者可利用该漏洞发起本地攻击。

CVSS 5.3 · Medium EPSS 0.16% · P4

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

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-2026-19108

Vulnerability Information
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Vulnerability Title
MZ Automation libiec61850 URCB Revalidation reporting.c deleteDataSetValuesShadowBuffer use after free
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was found in MZ Automation libiec61850 up to 1.6.1. The affected element is the function deleteDataSetValuesShadowBuffer of the file src/iec61850/server/mms_mapping/reporting.c of the component URCB Revalidation. The manipulation results in use after free. The attack needs to be approached locally. The exploit has been made public and could be used. Upgrading to version 1.6.2 is sufficient to fix this issue. The patch is identified as 486fd57f3aed65bb9d636ff00f9ddce2e450b168. Upgrading the affected component is advised.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
释放后使用
Source: CVE Program / CVE List V5
Vulnerability Title
Mz Automation libIEC61850 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mz Automation libIEC61850是德国Mz Automation公司的一款用于电力系统通信的协议实现库。 Mz Automation libIEC61850 1.6.1及之前版本存在安全漏洞，该漏洞源于URCB Revalidation组件中src/iec61850/server/mms_mapping/reporting.c文件的deleteDataSetValuesShadowBuffer函数存在释放后重用问题，攻击者可利用该漏洞发起本地攻击。
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-2026-19108

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III. Intelligence Information for CVE-2026-19108

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Patches & Fixes for CVE-2026-19108 (1)

Vendor Advisories for CVE-2026-19108 (1)

Vendor Pages for CVE-2026-19108 (1)

Other References for CVE-2026-19108 (3)

Other References for CVE-2026-19108 (1)

IV. Related Vulnerabilities

Same product: libiec61850
Same vendor: MZ Automation
Same weakness: CWE-416

V. Comments for CVE-2026-19108

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