CVE-2019-19931: Mz-Automation LIBIEC61850

High severity, CVSS 8.8. EPSS: 1.3% chance of exploitation in the next 30 days.

In libIEC61850 1.4.0, MmsValue_decodeMmsData in mms/iso_mms/server/mms_access_result.c has a heap-based buffer overflow.

Affected products

• Mz-Automation LIBIEC61850: version 1.4.0 only

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