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Fencer Vulns
high 8.8

CVE-2023-3634 json

Festo: MSE6-C2M/D2M/E2M Incomplete User Documentation of Remote Accessible Functions

published 2026-04-16 6 mo ago modified 2026-10-28 11 d ago also EUVD-2023-44280

cvss
8.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 51%
public exploits
0
none known

Summary

In products of the MSE6 product-family by Festo a remote authenticated, low privileged attacker could use functions of undocumented test mode which could lead to a complete loss of confidentiality, integrity and availability.

Vendor advisories

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

cisa ICSA-25-324-04 updated cvss 8.8

Festo MSE6-C2M/D2M/E2M

  • Festo Software
    affected: vendor fix

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
no
Technical impact
total
Assessed
6 mo ago

Exploit prediction

0.64% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Festo MSE6-C2M-5000-FB36-D-M-RG-BAR-M12L4-AGD
  • Festo MSE6-C2M-5000-FB36-D-M-RG-BAR-M12L5-AGD
  • Festo MSE6-C2M-5000-FB43-D-M-RG-BAR-M12L4-MQ1-AGD
  • Festo MSE6-C2M-5000-FB43-D-M-RG-BAR-M12L5-MQ1-AGD
  • Festo MSE6-C2M-5000-FB44-D-M-RG-BAR-AMI-AGD
  • Festo MSE6-C2M-5000-FB44-D-RG-BAR-AMI-AGD
  • Festo MSE6-D2M-5000-CBUS-S-RG-BAR-VCB-AGD
  • Festo MSE6-E2M-5000-FB13-AGD
  • Festo MSE6-E2M-5000-FB36-AGD
  • Festo MSE6-E2M-5000-FB37-AGD
  • Festo MSE6-E2M-5000-FB43-AGD
  • Festo MSE6-E2M-5000-FB44-AGD

Classification

Weakness
  • CWE-1242 Inclusion of Undocumented Features or Chicken Bits

References

Sources

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.