CVE-2026-19259: MZ Automation libiec61850 MMS Protocol Workflow iec61850_common.c MmsMapping_varAccessSpecToObjectReference heap-based overflow
A vulnerability has been found in MZ Automation libiec61850 up to 1.6.1. The affected element is the function MmsMappingvarAccessSpecToObjectReference of the file src/iec61850/common/iec61850common.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.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-19259?
CVE-2026-19259 has a severity rating of medium with a score of 5.3.
How does CVE-2026-19259 affect MZ Automation libiec61850?
CVE-2026-19259 affects the MmsMapping_varAccessSpecToObjectReference function in the MMS Protocol Workflow, leading to a heap-based overflow.
What is the risk associated with CVE-2026-19259?
CVE-2026-19259 carries a risk score of 39, indicating potential vulnerabilities in the affected software.
How do I fix CVE-2026-19259?
To remediate CVE-2026-19259, update MZ Automation libiec61850 to a version later than 1.6.1.
What could be the consequences of exploiting CVE-2026-19259?
Exploiting CVE-2026-19259 could lead to buffer overflow scenarios, possibly allowing attackers to manipulate application behavior.