Buffer overflow in Ftpshell Server
CVE-2018-25226
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.
Vulnerability class: Buffer Overflow
EPSS: 0.002 (12.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Ftpshell Server — versions 6.83
- Ftpshell Ftpshell_server — versions 6.83
Weakness classification (CWE)
References
- disclosure@vulncheck.com (Exploit, VDB Entry, exploit)
- disclosure@vulncheck.com (Product, product)
- disclosure@vulncheck.com (product, Broken Link)
- disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2018-25226?
- CVE-2018-25226 is a medium-severity vulnerability in Ftpshell Server, classified under Out-of-bounds Write. CVSS score: 6.2/10. Published 2026-03-30.
- How severe is CVE-2018-25226?
- Medium severity. CVSS v3 base score is 6.2 out of 10.