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Festo: CPX-CEC-C1 and CPX-CMXX, Missing Authentication for Critical Webpage Function

VDE-2022-036
Last update
28.07.2025 12:00
Published at
20.09.2022 12:00
Vendor(s)
Festo SE & Co. KG
External ID
FSA-202207
CSAF Document

Summary

Unauthenticated access to critical webpage functions (e.g. reboot) may cause a denial of service of the device.

Impact

CPX-CEC-C1 and CPX-CMXX allow unauthenticated access to critical webpage functions (e.g. reboot) which may cause a denial of service of the device

Affected Product(s)

Model no. Product name Affected versions
CPX-CEC-C1 Control block CPX-CEC-C1 Firmware <=2.0.12
CPX-CMXX Control block CPX-CMXX Firmware <=1.2.34 rev.404
CPX-CEC-C1 Control block-SET CPX-CEC-C1 Firmware <=1.2.34 rev.404

Vulnerabilities

Expand / Collapse all

Published
22.09.2025 14:57
Weakness
Improper Privilege Management (CWE-269)
Summary

Festo control block CPX-CEC-C1 and CPX-CMXX in multiple versions allow unauthenticated, remote access to critical webpage functions which may cause a denial of service.

References

Remediation

Currently no fix is planned.
Replace CPX-CEC-C1 with follow-up product CPX-CEC-C1-V3.
Replace CPX-CMXX with follow up product CPX-CEC-M1-V3.

Revision History

Version Date Summary
1.0.0 20.09.2022 12:00 Initial revision.
1.1.0 19.10.2022 12:00 Added Control block-Set CPX-CEC-C1 and Control block-SET CPX-CMXX to affected products.
1.1.1 11.01.2024 11:00 Adjust link to VDE Advisory
1.1.2 28.07.2025 12:00 Adjusted to VDE template. Change title from 'CPX-CEC-C1 and CPX-CMXX, Missing Authentication for Critical Webpage Function' to 'Festo: CPX-CEC-C1 and CPX-CMXX, Missing Authentication for Critical Webpage Function'. Updated legal disclaimer to add references to special provisions. Remediations were consolidated into one.