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.
Attack Parameters
Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
Low
Partial disruption
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products
mz automation:libiec61850
References 6
https://vuldb.com/vuln/387009
VDB-387009 | MZ Automation libiec61850 MMS Protocol Workflow iec61850_common.c MmsMapping_varAccessSpecToObjectReference heap-based overflow
https://vuldb.com/vuln/387009/cti
VDB-387009 | CTI Indicators (IOB, IOC, IOA)
https://vuldb.com/cve/CVE-2026-19259
CVE-2026-19259 | CVE Analysis and Report
https://vuldb.com/submit/865176
Submit #865176 | MZ Automation libiec61850 1.6.1 Memory Corruption (Out-of-bounds Read)
https://github.com/mz-automation/libiec61850/issues/599
NVD
https://github.com/user-attachments/files/29190426/PoC.zip
NVD