---
id: "CVE-2026-115339"
page: "https://infrastack.ai/live/CVE-2026-115339"
kind: "vulnerability"
aliases: ["CVE-2026-115339"]
title: "WS_FTP Server: missing resource limits let remote attackers crash it"
severity: "high"
cvss: 7.5
epss: null
exploited: false
status: "open"
category: "vendor"
products: [{"name": "WS_FTP Server", "fixed": [], "affected": "", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["file-transfer", "vendor", "windows", "ws_ftp_server"]
not_affected_if: ["non-windows", "not-internet-exposed"]
published_at: "2026-11-09T17:17:11+00:00"
first_seen_at: "2026-11-09T17:27:38+00:00"
updated_at: "2026-11-09T17:28:48+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-115339", "first_seen_at": "2026-11-09T17:27:38+00:00"}]
exploit_sources: []
---

# WS_FTP Server: missing resource limits let remote attackers crash it

Link for people: https://infrastack.ai/live/CVE-2026-115339 (this .md is for agents)

WS_FTP Server releases before 2025.0.5 on Windows do not enforce sufficient resource limits. An unauthenticated remote attacker can exhaust resources and cause a denial of service.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:WS_FTP Server affected range not listed fixed no fixed version listed

## How to check

- Check the installed WS_FTP Server version in the admin console or on the server.
- Compare it against `2025.0.5`; anything lower is in the stated range.

## Fix

- WS_FTP Server: move to `2025.0.5` or later.

## Timeline

- 2026-11-09T17:27:38+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-115339

## From the sources

Insufficient resource limits in Progress Software WS_FTP Server releases prior to 2025.0.5 on Windows could allow an unauthenticated remote attacker to cause denial of service.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_