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CVE-2024-4040

10, critical Known exploited

CrushFTP VFS Sandbox Escape Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab) CISA KEV catalogue (opens in a new tab)
CVSS
10, critical critical CVSS v3.1
EPSS, next 30 days
100% higher than 99.9% of scored CVEs
Exploitation
Confirmed in the wild
Published
22 Apr 20242 years ago

Known exploited

CISA added this to the Known Exploited Vulnerabilities Catalog on 24 Apr 2024. US federal agencies had to remediate by 1 May 2024, a deadline that has passed.

Required action. Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Description

A server side template injection vulnerability in CrushFTP in all versions before 10.7.1 and 11.1.0 on all platforms allows unauthenticated remote attackers to read files from the filesystem outside of the VFS Sandbox, bypass authentication to gain administrative access, and perform remote code execution on the server.

Details

Vendor
CrushFTP
Product
CrushFTP
Weakness
CWE-1336 (opens in a new tab)
Status
Analyzed
Updated
17 Jun 2026
Assigner
430a6cef-dc26-47e3-9fa8-52fb7f19644e

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

References 8

Exploit code 2

Patches and fixes 4

Advisories 1

Other references 1

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other CrushFTP CVEs

Every CrushFTP CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2025-54309 CrushFTP Unprotected Alternate Channel Vulnerability KEV EPSS 95% 9.8, critical
  • CVE-2025-31161 CrushFTP Authentication Bypass Vulnerability KEV EPSS 100% 9.8, critical

Beyond this page

Is CVE-2024-4040 in your network?

This page tells you how dangerous CVE-2024-4040 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

CVE-2024-4040 is in the CISA catalogue of exploited vulnerabilities: attackers are already exploiting it.

  • EXYS7600 OCELOT

    Find it before attackers do

    Ocelot scans your network on a schedule and reports every vulnerability it finds by its CVE identifier, with its CVSS score and how many of your hosts are affected. A finding like CVE-2024-4040 comes with the devices to patch.

    Learn more about EXYS7600 OCELOT

  • EXYS7950 KONDRA

    Detect it if it's exploited

    Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.

    Learn more about EXYS7950 KONDRA
Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 17 Oct 2026, not the live upstream state.