CrushFTP · CrushFTP
CVE-2024-4040
CrushFTP VFS Sandbox Escape Vulnerability
CISA KEV record
- CISA date added
- 2024-04-24
- CISA due date
- 2024-05-01
- Known ransomware use
- Unknown
NVD risk context
10.0 CRITICAL
CVSS is a technical severity score. CISA’s KEV status remains the evidence that this vulnerability is known to be exploited.
Description
CrushFTP contains an unspecified sandbox escape vulnerability that allows a remote attacker to escape the CrushFTP virtual file system (VFS).
Required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
NVD reference index
Vendor and remediation references
NVD has tagged these sources as vendor advisories, patches, mitigations, or release notes.
- https://www.crushftp.com/crush10wiki/Wiki.jsp?page=Update ↗
- https://www.crushftp.com/crush11wiki/Wiki.jsp?page=Update ↗
- https://www.reddit.com/r/cybersecurity/comments/1c850i2/all_versions_of_crush_ftp_are_vulnerable/ ↗
Other NVD references (5)
- https://github.com/airbus-cert/CVE-2024-4040 ↗
- https://www.bleepingcomputer.com/news/security/crushftp-warns-users-to-patch-exploited-zero-day-immediately/ ↗
- https://www.rapid7.com/blog/post/2024/04/23/etr-unauthenticated-crushftp-zero-day-enables-complete-server-compromise/ ↗
- https://www.reddit.com/r/crowdstrike/comments/1c88788/situational_awareness_20240419_crushftp_virtual/ ↗
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-4040 ↗
MITRE CWE context
CWE classification
The product uses a template engine to insert or process externally-influenced input, but it does not neutralize or incorrectly neutralizes special elements or syntax that can be interpreted as template expressions or other code directives when processed by the engine.
View official MITRE CWE details ↗NVD record timing
NVD record timeline
These dates describe NVD’s record, not CISA’s KEV addition or remediation due date.
- NVD published
- Apr 22, 2024, 08:15 PM UTC When NVD first published this CVE record.
- NVD last updated
- Jun 17, 2026, 08:00 AM UTC When NVD last changed its analysis or record data.
Advanced: view the technical CVSS vector
This standardized code is intended for security tools and technical analysts. The plain-language risk summary above explains its main points.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CISA notes
https://www.crushftp.com/crush11wiki/Wiki.jsp?page=Update&version=34; https://nvd.nist.gov/vuln/detail/CVE-2024-4040