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

published 2022-09-20 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-42508

cvss: 7.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.9%; EPSS 0.9% chance of exploitation in 30 days, percentile 58%
public exploits: 0; none known

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.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-25-273-03 updated 2025-07-28 cvss 7.5

Festo CPX-CEC-C1 and CPX-CMXX

Festo Control block CPX-CEC-C1 Firmware <=2.0.12 Festo Control block CPX-CMXX Firmware <=1.2.34_rev.404 Festo Control block-SET CPX-CEC-C1 Firmware <=1.2.34_rev.404
affected: no fix planned

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 17 mo ago (2025-05-29)

Exploit prediction

0.86% chance of exploitation in the next 30 days, higher than 58% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

FESTO Control block CPX-CEC-C1 (no. 567347)
FESTO Control block CPX-CMXX (no. 555667)

Classification

Weakness

CWE-269 Improper Privilege Management

References

cert.vde.com /en/advisories/VDE-2022-036
mitigation, third-party-advisory

Sources

CVE List CVE-2022-3079
NVD CVE-2022-3079

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary