A vulnerability was found in mz-automation libiec61850 up to 1.6.1. It has been classified as problematic. This issue affects the function
checkDataSetAccess of the file src/iec61850/server/mms_mapping/mms_mapping.c of the component MMS Request Handler. This manipulation causes out-of-bounds read.
This vulnerability is handled as CVE-2026-18583. The attack can be initiated remotely. Additionally, an exploit exists.
Upgrading the affected component is recommended.
The vendor was contacted early about this disclosure.
