CVE-2019-19930: Mz-Automation LIBIEC61850

Medium severity, CVSS 6.5. EPSS: 1.1% chance of exploitation in the next 30 days.

In libIEC61850 1.4.0, MmsValue_newOctetString in mms/iso_mms/common/mms_value.c has an integer signedness error that can lead to an attempted excessive memory allocation.

Affected products

• Mz-Automation LIBIEC61850: version 1.4.0 only

Published 2019-12-23. Last modified 2026-06-17.