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.

Attack Vector Local

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00012.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Ftpshell FTPShell Server affected
Version Status Constraints
6.83 affected —

No data.

No data.

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Project Subscriptions

Vendors Products
Ftpshell Subscribe
Ftpshell Server Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
http://www.ftpshell.com/downloadserver.htm cve-icon cve-icon
http://www.ftpshell.com/index.htm cve-icon cve-icon
https://www.exploit-db.com/exploits/46430 cve-icon cve-icon
https://www.vulncheck.com/advisories/ftpshell-server-denial-of-service-via-account-name cve-icon cve-icon
History

Mon, 30 Mar 2026 11:15:00 +0000

Type Values Removed Values Added
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.
Title FTPShell Server 6.83 Denial of Service via Account Name
First Time appeared Ftpshell
Ftpshell ftpshell Server
Weaknesses CWE-787
CPEs cpe:2.3:a:ftpshell:ftpshell_server:2002:*:*:*:*:*:*:*
cpe:2.3:a:ftpshell:ftpshell_server:6.83:*:*:*:*:*:*:*
Vendors & Products Ftpshell
Ftpshell ftpshell Server
References
Metrics cvssV3_1

{'score': 6.2, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-03-30T11:02:19.723Z

Reserved: 2026-03-30T10:53:37.330Z

Link: CVE-2018-25226

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-03-30T12:16:15.077

Modified: 2026-03-30T13:26:07.647

Link: CVE-2018-25226

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses