CVE-2026-65421 | MZ Automation libiec61850 up to 1.6.1 MMS BER decoder length heap-based overflow

July 31, 2026 Yanac

A vulnerability identified as critical has been detected in MZ Automation libiec61850 up to 1.6.1. Affected by this vulnerability is an unknown functionality of the component MMS BER decoder. This manipulation of the argument length causes heap-based buffer overflow.

This vulnerability is tracked as CVE-2026-65421. The attack is possible to be carried out remotely. No exploit exists.

You should upgrade the affected component.VulDB Recent EntriesRead More