CVE-2021-22809: Schneider Electric Guicon

Medium severity, CVSS 5.5. EPSS: 0.6% chance of exploitation in the next 30 days.

A CWE-125:Out-of-Bounds Read vulnerability exists that could cause unintended data disclosure 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.