CVE-2021-22807: Schneider Electric Guicon

High severity, CVSS 7.8. EPSS: 0.8% chance of exploitation in the next 30 days.

A CWE-787: Out-of-bounds Write vulnerability exists that could cause arbitrary code execution when a malicious *.gd1 configuration file is loaded into the GUIcon tool. Affected Product: Eurotherm by Schneider Electric GUIcon Version 2.0 (Build 683.003) and prior

Affected products

• Schneider Electric Guicon: up to and including 2.0

Published 2022-01-28. Last modified 2026-06-17.