CVE-2011-4800

9.0 HIGH 7% exploit odds Fix listed Disclosure Server

What it is

Directory traversal vulnerability in Serv-U FTP Server before 11.1.0.5 allows remote authenticated users to read and write arbitrary files, and list and create arbitrary directories, via a "..:/" (dot dot colon forward slash) in the (1) list, (2) put, or (3) get commands.

At a glance

Exploitability: Can be exploited over the network with a login. High risk of data exposure, data tampering, service disruption.
Exploit odds: 7.0% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2011-12-14 00:55 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-16 23:35 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 7.0% in the next 30 days (EPSS).
Severity: 9.0 HIGH (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2011-12-14 00:55 UTC
Last modified: 2026-06-16 23:35 UTC
Exploit probability: 7.0% · EPSS, next 30 days
Weakness: CWE-22 · Path traversal
Record status: Modified

Affected

Solarwinds serv-u File Server ≤ 11.1.0.3
Solarwinds serv-u File Server 3.0.0.16
Solarwinds serv-u File Server 3.0.0.17
Solarwinds serv-u File Server 3.1.0.0
Solarwinds serv-u File Server 3.1.0.1
Solarwinds serv-u File Server 3.1.0.3
Solarwinds serv-u File Server 4.0.0.4
Solarwinds serv-u File Server 4.1.0.0

Attack profile CVSS 2.0 · 9.0

Attack vector: Network
Complexity: Low
Authentication: Single
Confidentiality: Complete
Integrity: Complete
Availability: Complete

Raw vector

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

Is it in your code?

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Read https://cve-list.com/agent/cve/CVE-2011-4800.md and follow it. Check whether this project is affected by CVE-2011-4800. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record