What’s Vulnerable › Vulnerabilities

CVE-2018-25226: FTPShell Server 6.83 Denial of Service via Account Name

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-03-30 · updated 2026-06-17
• Weakness: CWE-787

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.

Affected products

• Ftpshell FTP Shell Server: 6.83

References

• http://www.ftpshell.com/downloadserver.htm
• http://www.ftpshell.com/index.htm
• https://www.exploit-db.com/exploits/46430
• https://www.vulncheck.com/advisories/ftpshell-server-denial-of-service-via-account-name

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