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CVE-2009-4006

86
FAUCET Score

CVE-2009-4006 describes a critical stack-based buffer overflow vulnerability in the TEA decoding algorithm of RhinoSoft Serv-U FTP server versions 7.0.0.1, 9.0.0.5, and others prior to 9.1.0.0. This flaw allows unauthenticated remote attackers to execute arbitrary code by supplying a crafted, long hexadecimal string. With a CVSS score of 10.0, this vulnerability presents a severe risk due to its network-based attack vector, low attack complexity, and complete compromise of confidentiality, integrity, and availability. While not listed on the KEV catalog or currently active on the Hot List, exploit code, including a Metasploit module, is publicly available, yet there is minimal community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
7.0.0.1CPE matchmatch criteria
cpe:2.3:a:solarwinds:serv-u_file_server:7.0.0.1:*:*:*:*:*:*:*
7.0.0.2CPE matchmatch criteria
cpe:2.3:a:solarwinds:serv-u_file_server:7.0.0.2:*:*:*:*:*:*:*
7.0.0.3CPE matchmatch criteria
cpe:2.3:a:solarwinds:serv-u_file_server:7.0.0.3:*:*:*:*:*:*:*
7.0.0.4CPE matchmatch criteria
cpe:2.3:a:solarwinds:serv-u_file_server:7.0.0.4:*:*:*:*:*:*:*
7.1.0.0CPE matchmatch criteria
cpe:2.3:a:solarwinds:serv-u_file_server:7.1.0.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

10.0HIGH

AV:N/AC:L/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
82.93%
Probability of exploitation in next 30 days
EPSS Percentile
99.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Metasploit: Rhinosoft Serv-U Session Cookie Buffer Overflow · Nov 1, 2009
ExploitDB: EDB-16775 · Mar 10, 2010
This CVE's current EPSS score of 0.8293 is in the 100th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

secunia.com / advisories/37228
Vendor Advisory
secunia.com / secunia_research/2009-46
Vendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/54322
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6142
osvdb.org / 60427
securityfocus.com / archive/1/507955/100/0/threaded
securityfocus.com / bid/37051
securitytracker.com / id
serv-u.com / releasenotes
vupen.com / english/advisories/2009/3277
Vendor Advisory