CVE-2009-4006
CriticalPublic exploitStack-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.
Published Nov 20, 2009 · Updated Apr 22, 2026
Key Facts
Patch immediately- CVE-2009-4006 is a critical-severity vulnerability (CVSS 10.0 v2) affecting Serv-U File Server (Solarwinds).
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 83% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v2
10.0
AV:N/AC:L/Au:N/C:C/I:C/A:C
EPSS (30-day exploit likelihood)
83%
Higher than 99.6% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2009-4006 brief as a PDF
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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.
Affected Products
28 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Serv-U File ServerSolarwinds | 7.0.0.1, 7.0.0.2, 7.0.0.3, 7.0.0.4, 7.1.0.0, 7.1.0.1, 7.1.0.2, 7.2.0.0 | n/a |
Timeline
Publicly disclosed
Nov 20, 2009
Last updated
Apr 22, 2026
Weakness Type
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References
- advisory37228
- advisoryhttp://secunia.com/secunia_research/2009-46/
- advisoryADV-2009-3277
- exploitMSF servu_session_cookie.rb
- exploitExploitDB-16775
FAQ
Common Questions.
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.
Affected: Serv-U File Server (Solarwinds) versions 7.0.0.1, 7.0.0.2, 7.0.0.3, 7.0.0.4, 7.1.0.0, 7.1.0.1, 7.1.0.2, 7.2.0.0. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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