CVE-2022-3079

Festo Control block CPX-CEC-C1 — vulnerability CVE-2022-3079

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.

CVSS 7.5Patch available

This record: live connection— last retrieved: 7 November 2026 at 02:05.

Vendor

Festo

Products

Control block CPX-CEC-C1, Control block CPX-CMXX, Control block-SET CPX-CEC-C1

up to version <=2.0.12

Published

20 September 2022

Last modified

17 June 2026

Original source information

Taken directly from NVD, CISA or the vendor — sometimes in English, unchanged from the source.

Technical description

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.

CVSS 3.1 — vector details

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack vector

NETWORK

Privileges required

NONE

User interaction

NONE

Confidentiality

None

Integrity

None

Availability

High

EPSS — Exploit Prediction Scoring System

Probability of exploitation within 30 days

0.8%

Percentile

56e

Source: FIRST.org, updated on 6 November 2026.

Patch information

Currently no fix is planned. Festo recommends limiting access to the webserver (tcp port 80) of the device to what is absolutely necessary. Replace CPX-CEC-C1 with follow-up product CPX-CEC-C1-V3. Replace CPX-CMXX with follow up product CPX-CEC-M1-V3.

IACS Radar assessment

Our own interpretation and context for the source data above.

IACS Radar assessment

Our own interpretation and context for this vulnerability — not an official source.

IACS Radar priority score

40/ 100

Based on CVSS 7.5, EPSS 0.8%, industrial relevance 40/100.

Combines CVSS, EPSS, KEV status, industrial relevance and exposure relevance — a complement to, not a replacement for, the individual scores below and above.

Conditions for exploitation

•Network access to the affected device or segment is required.
•No valid credentials are needed.
•No user interaction required.

Operational impact & energy relevance

Possible loss of visibility of or control over the process upon successful exploitation.

No strong energy-sector-specific signals recognised; general OT/ICS relevance.

Recommended defensive measures

•Limit user rights to what is strictly necessary through role-based access.
•Restrict network access to the affected device to a dedicated OT management segment.
•Implement network segmentation in line with zones and conduits (IEC 62443-3-2).
•Monitor for abnormal protocol traffic using an OT-aware detection system.

Industrial relevance score

40/ 100

• Mentioned in an official CISA ICS advisory, which confirms direct relevance to industrial control systems.

Classification is provisional; manual verification by an OT security analyst is recommended.

Classified by IACS Radar-analysepijplijn (geautomatiseerd) on 7 November 2026.

IEC 62443 mapping

IEC 62443-4-2FR2 · Gebruiksbeheer

Automatic IACS Radar assessment based on the reported CWE weakness classification; not an official certification statement.

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