CVE-2006-2173
Buffer overflow in FileZilla FTP Server 2.2.22 allows remote authenticated attackers to cause a denial of service and possibly execute…
- 6.4MediumCVSS base score
- 6.7%Exploitation in 30 daysEPSS · top 6.1% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 1Public exploitsMetasploit, Nuclei and Exploit-DB
Description
Buffer overflow in FileZilla FTP Server 2.2.22 allows remote authenticated attackers to cause a denial of service and possibly execute arbitrary code via a long (1) PORT or (2) PASS followed by the MLSD command, or (2) the remote server interface, as demonstrated by the Infigo FTPStress Fuzzer.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list a Nuclei template for it.
Show the exploits1
Nuclei templates1 template
- FileZilla FTP Server 2.2.22 - Buffer Overflow (Nuclei template) (opens in a new tab)
network/cves/2006/CVE-2006-2173.yamlSeverity medium
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By mitre
- 1 day later
· 1 day later
Published
- 18 years later
· 18 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium6.4 | AV:N/AC:L/Au:N/C:N/I:P/A:P |
- EPSS (exploitation in 30 days)
- 6.7% · top 6.1% of all CVEs (9 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.4.
Affected products
n/a
- affected n/a
References
7
- 17802 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- http://www.infigo.hr/en/in_focus/tools (opens in a new tab)x_refsource_MISCx_transferred
- 20060502 FTP Fuzzer (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 25221 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- http://www.infigo.hr/hr/in_focus/advisories/INFIGO-2006-05-03 (opens in a new tab)x_refsource_MISCx_transferred
- filezilla-port-pass-dos(26303) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- 20060508 INFIGO-2006-05-03: Multiple FTP Servers vulnerabilities (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2006-2174 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2006-2173)Record last updated .