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Festo CECC Controller Firmware Vulnerabilities and Fixes

⚠️ Festo firmware for Controller CECC-S, -LK, and -D families contains multiple vulnerabilities (aggregate CVSS up to 9.8) in the integrated CODESYS V3 runtime and related components. Affected releases include R05 (2.3.8.0) and R06 (2.3.8.1); Festo advises updating affected units to firmware 2.4.2.0 where fixes are provided. Exploitable issues may enable remote code execution, denial-of-service, privilege escalation, or unauthorized access. CISA recommends isolating control networks, restricting remote exposure, and applying vendor guidance and mitigations while performing appropriate risk analysis.