---
id: CVE-2018-18861
title: >-
  Buffer overflow in PCMan FTP Server 2.0.7 allows for remote code execution via
  the APPE command.
summary: >-
  Buffer overflow in PCMan FTP Server 2.0.7 allows for remote code execution via
  the APPE command.
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-119
vendor: pcman
product: ftp_server
affected:
  - ftp_server = 2.0.7
published: '2018-11-20'
updated: '2026-08-19'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2018-18861'
references:
  - url: >-
      http://packetstormsecurity.com/files/150174/PCManFTPD-2.0.7-Server-APPE-Command-Buffer-Overflow.html
    label: cve@mitre.org
  - url: >-
      http://packetstormsecurity.com/files/150174/PCManFTPD-2.0.7-Server-APPE-Command-Buffer-Overflow.html
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.04461
epssPercentile: 0.91003
ingestedAt: '2026-08-19T17:42:35.909Z'
---

## Overview

Buffer overflow in PCMan FTP Server 2.0.7 allows for remote code execution via the APPE command.

## Affected

- `ftp_server = 2.0.7`

## Remediation

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