CVE-2009-4006Stack-based buffer overflow in the TEA decoding algorithm in RhinoSoft Serv-U FTP server 7.0.0.1, 9.0.0.5, and other versions before…
- 10.0HighCVSS base score
- 82.9%Exploitation in 30 daysEPSS · top 0.3% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 2Public exploitsMetasploit, Nuclei and Exploit-DB
Description
Stack-based buffer overflow in the TEA decoding algorithm in RhinoSoft Serv-U FTP server 7.0.0.1, 9.0.0.5, and other versions before 9.1.0.0 allows remote attackers to execute arbitrary code via a long hexadecimal string.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list a Metasploit module and an Exploit-DB entry for it.
Show the exploits2
Metasploit modules1 module
- Rhinosoft Serv-U Session Cookie Buffer Overflow (Metasploit module) (opens in a new tab)
exploit/windows/http/servu_session_cookieRank gooddisclosed 1 Nov 2009
Exploit-DB1 entry
- RhinoSoft Serv-U FTP Server - Session Cookie Buffer Overflow (Metasploit) (Exploit-DB entry) (opens in a new tab)
EDB-ID 16775remote, windowspublished 10 Mar 2010Verified
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
- 15 years later
· 15 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 | High10.0 | AV:N/AC:L/Au:N/C:C/I:C/A:C |
- EPSS (exploitation in 30 days)
- 82.9% · top 0.3% of all CVEs (14 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 10.0.
Affected products
n/a
- affected n/a
References
References10
- 60427 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- 1023199 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- 20091118 Secunia Research: RhinoSoft Serv-U TEA Decoding Buffer Overflow (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- http://secunia.com/secunia_research/2009-46/ (opens in a new tab)x_refsource_MISCx_transferred
- oval:org.mitre.oval:def:6142 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- ADV-2009-3277 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- http://www.serv-u.com/releasenotes/ (opens in a new tab)x_refsource_MISCx_transferred
- 37228 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 37051 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- servu-tea-bo(54322) (opens in a new tab)vdb-entryx_refsource_XFx_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-2009-3977 (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-2009-4006)Record last updated .