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Fencer Vulns
critical 9.8

CVE-2022-3270 json

Incomplete Documentation of remote functions in FESTO products.

published 2022-12-01 3 y ago modified 2026-06-17 4 mo ago also EUVD-2022-42670

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.1%
EPSS 1.1% chance of exploitation in 30 days, percentile 66%
public exploits
0
none known

Summary

In multiple products by Festo a remote unauthenticated attacker could use functions of an undocumented protocol 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-26-015-02 updated cvss 9.8

Festo Firmware

  • Festo Bus module CPX-E-EP Firmware all versions Festo Bus module CPX-E-PN Firmware all versions Festo Bus node CPX-FB32 Firmware all versions Festo Bus node CPX-FB33 Firmware all versions Festo Bus node CPX-FB36 Firmware all versions Festo Bus node CPX-FB37 Firmware all versions
    +34 more products
    Festo Bus node CPX-FB39 Firmware all versions Festo Bus node CPX-FB40 Firmware all versions Festo Bus node CPX-FB43 Firmware all versions Festo Bus node CPX-M-FB34 Firmware all versions Festo Bus node CPX-M-FB35 Firmware all versions Festo Bus node CPX-M-FB44 Firmware all versions Festo Bus node CPX-M-FB45 Firmware all versions Festo Bus node CTEU-EP Firmware all versions Festo Bus node CTEU-PN Firmware all versions Festo Bus node CTEU-PN-EX1C Firmware all versions Festo Camera system CHB-C-N Firmware all versions Festo Compact Vision System SBO*-C-* Firmware all versions Festo Compact Vision System SBO*-M-* Firmware all versions Festo Compact Vision System SBO*-Q-* Firmware all versions Festo Control block CPX-CEC Firmware all versions Festo Control block CPX-CEC-C1 Firmware all versions Festo Control block CPX-CEC-C1-V3 Firmware all versions Festo Control block CPX-CEC-M1 Firmware all versions Festo Control block CPX-CEC-M1-V3 Firmware all versions Festo Control block CPX-CEC-S1-V3 Firmware all versions Festo Control block CPX-CMXX Firmware all versions Festo Control block CPX-FEC-1-IE Firmware all versions Festo Controller CECC-D Firmware all versions Festo Controller CECC-D-BA Firmware all versions Festo Controller CECC-LK Firmware all versions Festo Controller CECC-S Firmware all versions Festo Controller CECC-X-* Firmware all versions Festo Controller CECX-X-C1 Firmware all versions Festo Controller CECX-X-M1 Firmware all versions Festo Controller CMXH-ST2-C5-7-DIOP Firmware all versions Festo Controller CPX-E-CEC-* Firmware all versions Festo Controller SBRD-Q Firmware all versions Festo EtherNet/IP interface CPX-AP-I-EP-M12 Firmware all versions Festo EtherNet/IP interface CPX-AP-I-PN-M12 Firmware all versions
    affected: mitigation

15 more affected in the full advisory

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
partial
Assessed
18 mo ago

Exploit prediction

1.12% chance of exploitation in the next 30 days, higher than 66% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Festo SE Bus module CPX-E-EP
  • Festo SE Bus node CPX-FB32
  • Festo SE Bus node CPX-FB33
  • Festo SE Bus node CPX-FB36
  • Festo SE Bus node CPX-FB37
  • Festo SE Bus node CPX-FB39
  • Festo SE Bus node CPX-FB40
  • Festo SE Bus node CPX-FB43
  • Festo SE Bus node CPX-M-FB34
  • Festo SE Bus node CPX-M-FB35
  • Festo SE Bus node CPX-M-FB44
  • Festo SE Bus node CPX-M-FB45
  • Festo SE Bus node CTEU-EP
  • Festo SE Bus node CTEU-PN
  • Festo SE Bus node CTEU-PN-EX1C
  • Festo SE Camera system CHB-C-N
  • Festo SE Compact Vision System SBO*-C-*
  • Festo SE Compact Vision System SBO*-M-*
  • Festo SE Compact Vision System SBO*-Q-*
  • Festo SE Control block CPX-CEC
  • Festo SE Control block CPX-CEC-C1
  • Festo SE Control block CPX-CEC-C1-V3
  • Festo SE Control block CPX-CEC-M1
  • Festo SE Control block CPX-CEC-M1-V3
  • Festo SE Control block CPX-CEC-S1-V3
  • Festo SE Control block CPX-CMXX
  • Festo SE Control block CPX-FEC-1-IE
  • Festo SE Controller CECC-D
  • Festo SE Controller CECC-D-BA
  • Festo SE Controller CECC-LK
  • Festo SE Controller CECC-S
  • Festo SE Controller CECC-X-*
  • Festo SE Controller CECX-X-C1
  • Festo SE Controller CECX-X-M1
  • Festo SE Controller CMXH-ST2-C5-7-DIOP
  • Festo SE Controller CPX-E-CEC-*
  • Festo SE Controller SBRD-Q
  • Festo SE EtherNet/IP interface CPX-AP-I-EP-M12
  • Festo SE EtherNet/IP interface CPX-AP-I-PN-M12
  • Festo SE Gateway CPX-IOT
  • Festo SE Integrated drive EMCA-EC-67-*
  • Festo SE Motor controller CMMO-ST-C5-1-DION
  • Festo SE Motor controller CMMO-ST-C5-1-DIOP
  • Festo SE Motor controller CMMO-ST-C5-1-LKP
  • Festo SE Motor controller CMMP-AS-*
  • Festo SE Motor controller CMMT-AS-*
  • Festo SE Operator unit CDPX-X-A-S-10
  • Festo SE Operator unit CDPX-X-A-W-13
  • Festo SE Operator unit CDPX-X-A-W-4
  • Festo SE Operator unit CDPX-X-A-W-7

Classification

Weakness
  • CWE-1059 Insufficient Technical Documentation

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.