Medium 5.3Published Aug 8, 2026

CVE-2026-19259MZ Automation libiec61850 MMS Protocol Workflow iec61850_common.c MmsMapping_varAccessSpecToObjectReference heap-based overflow

Updated under an hour ago (2026-10-19 09:00 UTC)

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Every CVE for MZ Automation libiec61850

Exploited in the last 30 days

A vulnerability has been found in MZ Automation libiec61850 up to 1.6.1. The affected element is the function MmsMapping_varAccessSpecToObjectReference of the file src/iec61850/common/iec61850_common.c of the component MMS Protocol Workflow. Such manipulation of the argument GetNamedVariableListAttributesResponse.itemId leads to heap-based buffer overflow. The attack must be carried out locally. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

CVSS: 5.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
Weakness (CWE): CWE-122, CWE-119
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulDB
NVD analysis: Deferred
Record last updated: Aug 10, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

MZ Automation libiec61850 mz_automation:libiec61850	1.6.0; 1.6.1	CNA record

References

https://vuldb.com/vuln/387009vdb-entry, technical-description
https://vuldb.com/vuln/387009/ctisignature, permissions-required
https://vuldb.com/cve/CVE-2026-19259third-party-advisory
https://vuldb.com/submit/865176third-party-advisory
https://github.com/mz-automation/libiec61850/issues/599issue-tracking
https://github.com/user-attachments/files/29190426/PoC.zipexploit

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.