CVE-2020-20486: IEC104 Project IEC104

High severity, CVSS 7.5. EPSS: 1.1% chance of exploitation in the next 30 days.

IEC104 v1.0 contains a stack-buffer overflow in the parameter Iec10x_Sta_Addr.

Affected products

• IEC104 Project IEC104: version 1.0 only

Published 2021-08-31. Last modified 2026-06-17.