---
id: CVE-2018-25229
title: BulletProof FTP Server 2019.0.0.50 Denial of Service via SMTP
summary: >-
  BulletProof FTP Server 2019.0.0.50 contains a denial of service vulnerability
  in the SMTP configuration interface that allows local attackers to crash the
  application by supplying an oversized string. Attackers can input a buffer of
  257 …
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N'
cvssSource: cna
cwe:
  - CWE-1282
vendor: Bpftpserver
product: BulletProof FTP Server
affected:
  - bulletproof_ftp_server 2019.0.0.50
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-03-30T11:23:45.685679Z'
exploitAvailable: true
published: '2026-03-30'
updated: '2026-10-01'
sourceUpdated: '2026-10-01T15:19:09.899Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2018-25229'
references:
  - url: 'https://www.exploit-db.com/exploits/46422'
    label: ExploitDB-46422
  - url: 'http://bpftpserver.com/'
    label: Official Product Homepage
  - url: 'http://bpftpserver.com/products/bpftpserver/windows/download'
    label: Product Reference
  - url: >-
      https://www.vulncheck.com/advisories/bulletproof-ftp-server-denial-of-service-via-smtp
    label: >-
      VulnCheck Advisory: BulletProof FTP Server 2019.0.0.50 Denial of Service
      via SMTP
tags:
  - cve.org
  - exploit-available
epss: 0.00216
epssPercentile: 0.10881
ingestedAt: '2026-10-01T15:48:17.889Z'
---

## Overview

BulletProof FTP Server 2019.0.0.50 contains a denial of service vulnerability in the SMTP configuration interface that allows local attackers to crash the application by supplying an oversized string. Attackers can input a buffer of 257 'A' characters in the SMTP Server field and trigger a crash by clicking the Test button.

## Affected

- `bulletproof_ftp_server 2019.0.0.50`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.