Directory traversal vulnerability in Serv-U before 9.2.0.1 allows remote authenticated users to read arbitrary files via unspecified vectors
Noroxi assessment
Priority: Monitor (action score 17/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 2.8% (FIRST EPSS); higher than 86.5% of all records.
- No special conditions are required; it is repeatable.
- According to the record, no fixed version is available yet.
Low priority for now. Update when a fix is released; follow the vendor's advisory.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Directory traversal vulnerability in Serv-U before 9.2.0.1 allows remote authenticated users to read arbitrary files via unspecified vectors.
- Published
- Apr 27, 2010
- Updated
- Jun 16, 2026
- EPSS
- 2.9% · 87th percentile
- CWE
- CWE-22
Report tools
Action score
17
Monitor
Low priority for now.
- CVSS
- 16 / 40 · 4.0 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 1 / 30 · 2.9%
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- No fixed version yet
If any of these changes, we'll tell you in the daily email digest.
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Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
| Vendor | Product | CPE |
|---|---|---|
| solarwinds | serv-u file server | cpe:2.3:a:solarwinds:serv-u_file_server |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- solarwinds serv-u file server3.0.0.16
- solarwinds serv-u file server3.0.0.17
- solarwinds serv-u file server3.1.0.0
- solarwinds serv-u file server3.1.0.1
- solarwinds serv-u file server3.1.0.3
- solarwinds serv-u file server4.0.0.4
- solarwinds serv-u file server4.1.0.0
- solarwinds serv-u file server4.1.0.3
- solarwinds serv-u file server5.0.0.0
- solarwinds serv-u file server5.0.0.11
- solarwinds serv-u file server5.0.0.4
- solarwinds serv-u file server5.0.0.9
- solarwinds serv-u file server5.1.0.0
- solarwinds serv-u file server5.2.0.0
- solarwinds serv-u file server5.2.0.1
- solarwinds serv-u file server6.0.0.0
- solarwinds serv-u file server6.0.0.1
- solarwinds serv-u file server6.0.0.2
- solarwinds serv-u file server6.1.0.0
- solarwinds serv-u file server6.1.0.1
Same product
solarwinds: all recordsOther highest-scoring records for the same primary product.
- CVE-2004-0330Buffer overflow in Serv-U ftp before 5.0.0.4 allows remote authenticated users to execute arbitrary code via a long time zone argument to th66This week
- 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 9.1.0.065This week
- CVE-2004-2111Stack-based buffer overflow in the site chmod command in Serv-U FTP Server before 4.2 allows remote attackers to execute arbitrary code via 60This week
- CVE-2004-2532Serv-U FTP server before 5.1.0.0 has a default account and password for local administration, which allows local users to execute arbitrary 45Plan
- CVE-2008-4501Directory traversal vulnerability in the FTP server in Serv-U 7.0.0.1 through 7.3, including 7.2.0.1, allows remote authenticated users to o39Monitor
- CVE-2011-4800Directory traversal vulnerability in Serv-U FTP Server before 11.1.0.5 allows remote authenticated users to read and write arbitrary files, 38Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
The product’s vendor appears in a public program. Matched by name; verify the scope text in the program.
Technical details
Attack conditions
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- P · data can be read
- Integrity
- none
- Availability
- none
- Attack complexity
- Low
- Confidentiality impact
- P
- Integrity impact
- None
- Availability impact
- None
Weakness class (CWE)
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')CVSS vector
AV:N/AC:L/Au:S/C:P/I:N/A:N
nvd-primary
Root cause
A user-supplied file name is joined with the allowed directory, but the result is never checked to confirm it is still inside that directory.
The bug in code
The whole CWE-22 classA representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.
Vulnerable
const file = path.join(ROOT, req.query.name);res.sendFile(file);Fixed
const file = path.resolve(ROOT, req.query.name);if (!file.startsWith(ROOT + path.sep)) { return res.sendStatus(400);}res.sendFile(file);Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
- Path TraversalCAPEC-126likelihood: High · Very High
- Using Slashes and URL Encoding Combined to Bypass Validation LogicCAPEC-64likelihood: High · High
- Manipulating Web Input to File System CallsCAPEC-76likelihood: High · Very High
- Using Escaped Slashes in Alternate EncodingCAPEC-78likelihood: High · High
- Using Slashes in Alternate EncodingCAPEC-79likelihood: High · High
ATT&CK techniques
—
Change log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
Show all references (4 more)Show less
Vendor advisories and official records. Exploit/PoC links are deliberately left out.