CVE-2021-33486: Codesys Runtime Toolkit

High severity, CVSS 7.5. EPSS: 1% chance of exploitation in the next 30 days.

All versions of the CODESYS V3 Runtime Toolkit for VxWorks from version V3.5.8.0 and before version V3.5.17.10 have Improper Handling of Exceptional Conditions.

Affected products

• Codesys Runtime Toolkit: from 3.5.8.0, before 3.5.17.10 (fixed in 3.5.17.10)

Published 2021-08-03. Last modified 2026-06-17.