CVE-2018-25226

MEDIUM

FTPShell Server 6.83 Denial of Service via Account Name

Title source: cna
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2018-25226. PoCs published by Victor Mondragón.

AI-analyzed exploit summary This PoC exploits a buffer overflow vulnerability in FTPShell Server 6.83 by writing a 417-byte string of 'A' characters to a file, which when pasted into the 'Account name to ban' field causes a denial of service (crash). The exploit is straightforward and demonstrates the vulnerability effectively.

Description

FTPShell Server 6.83 contains a buffer overflow vulnerability that allows local attackers to crash the application by supplying an excessively long string in the account name field. Attackers can trigger a denial of service by pasting a 417-byte payload into the 'Account name to ban' parameter within the Manage FTP Accounts interface.

Exploits (1)

exploitdb WORKING POC
by Victor Mondragón · pythondoswindows
https://www.exploit-db.com/exploits/46430

This PoC exploits a buffer overflow vulnerability in FTPShell Server 6.83 by writing a 417-byte string of 'A' characters to a file, which when pasted into the 'Account name to ban' field causes a denial of service (crash). The exploit is straightforward and demonstrates the vulnerability effectively.

Classification
Working Poc 95%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: FTPShell Server 6.83
No auth needed
Prerequisites: Python environment · FTPShell Server 6.83 installed on target system
devstral-2 · analyzed Apr 08, 2026 Full analysis →

References (4)

Core 4
Core References
Exploit exploit
ExploitDB-46430
https://www.exploit-db.com/exploits/46430
Product product
Official Product Homepage
http://www.ftpshell.com/index.htm
Product product
Product Reference
http://www.ftpshell.com/downloadserver.htm
Third Party Advisory third-party-advisory
VulnCheck Advisory: FTPShell Server 6.83 Denial of Service via Account Name
https://www.vulncheck.com/advisories/ftpshell-server-denial-of-service-via-account-name

Scores

CVSS v3 6.2
EPSS 0.0022
EPSS Percentile 12.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-787
Status published
Products (2)
Ftpshell/FTPShell Server 6.83
ftpshell/ftpshell_server 6.83
Published Mar 30, 2026
Tracked Since Mar 30, 2026