CVE-2022-21159: Mz-Automation LIBIEC61850

High severity, CVSS 7.5. EPSS: 1.8% chance of exploitation in the next 30 days.

A denial of service vulnerability exists in the parseNormalModeParameters functionality of MZ Automation GmbH libiec61850 1.5.0. A specially-crafted series of network requests can lead to denial of service. An attacker can send a sequence of malformed iec61850 messages to trigger this vulnerability.

Affected products

• Mz-Automation LIBIEC61850: version 1.5.0 only

Published 2022-04-15. Last modified 2026-06-17.