---
id: CVE-2026-90865
title: Command Injection via FTP Notification Variables in Progress WS_FTP Server
summary: >-
  An OS command injection vulnerability in Progress Software WS_FTP Server
  versions prior to 2024.0.7 and 2025.0.4 on Windows could allow arbitrary
  command execution with elevated privileges under certain configurations.
severity: critical
cvss: 9
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-78
  - CWE-88
vendor: Progress Software
product: WS_FTP Server
affected:
  - ws_ftp_server < 2024.0.7
  - ws_ftp_server < 2025.0.4
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-30T03:56:40.340149Z'
published: '2026-10-29'
updated: '2026-10-30'
sourceUpdated: '2026-10-30T17:18:24.861Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-90865'
references:
  - url: >-
      https://progress.lightning.force.com/lightning/r/Knowledge__kav/ka7Pb000001vl86IAA/view
tags:
  - cve.org
epss: 0.01143
epssPercentile: 0.66789
ingestedAt: '2026-11-05T16:24:31.173Z'
---

## Overview

An OS command injection vulnerability in Progress Software WS_FTP Server versions prior to 2024.0.7 and 2025.0.4 on Windows could allow arbitrary command execution with elevated privileges under certain configurations.

## Affected

- `ws_ftp_server < 2024.0.7`
- `ws_ftp_server < 2025.0.4`

## Remediation

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

### Workarounds

Contact Progress Software Technical Support for guidance on available mitigations.