CVE-2018-19185: Mz-Automation LIBIEC61850

Critical severity, CVSS 9.8. EPSS: 2.1% chance of exploitation in the next 30 days.

An issue has been found in libIEC61850 v1.3. It is a heap-based buffer overflow in BerEncoder_encodeOctetString in mms/asn1/ber_encoder.c. This is exploitable even after CVE-2018-18834 has been patched, with a different dataSetValue sequence than the CVE-2018-18834 attack vector.

Affected products

• Mz-Automation LIBIEC61850: version 1.3 only

Published 2018-11-12. Last modified 2026-06-17.