CVE-2018-25226 FTPShell Server 6.83 Denial of Service via Account Name
Local attackers can crash the FTPShell Server by supplying an excessively long string in the account name field, causing a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2018-25226?
CVE-2018-25226 is a medium-severity memory corruption vulnerability in FTPShell Server, published on 30 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Weakness: CWE-787
Which versions are affected by CVE-2018-25226?
It affects 1 product.
Products include Ftpshell Ftpshell Server.
How do I fix CVE-2018-25226?
No fix has been published for CVE-2018-25226 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2018-25226 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-25226 exists.
Other vulnerabilities in FTPShell Server
Sources
Also known as GHSA-mv2c-2q2x-3x5v.