Description
The Festo CECX-X-C1 Modular Master Controller with CoDeSys and CECX-X-M1 Modular Controller with CoDeSys and SoftMotion do not require authentication for connections to certain TCP ports, which allows remote attackers to (1) modify the configuration via a request to the debug service on port 4000 or (2) delete log entries via a request to the log service on port 4001.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Festo | CECX-X-C1 Modular Master Controller with CoDeSys | all | — |
| Festo | CECX-X-M1 Modular Controller with CoDeSys and SoftMotion | all | — |
Advisories 1
- ICSA-14-084-01 Festo CECX-X-(C1/M1) Controller Vulnerabilities CISA ICS & IT advisories · Jun 6, 2025