CrushFTP · CrushFTP
CVE-2024-4040
Unauthenticated arbitrary file read and remote code execution in CrushFTP
What it is
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.
CISA: CrushFTP contains an unspecified sandbox escape vulnerability that allows a remote attacker to escape the CrushFTP virtual file system (VFS).
What to do
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Deadline for US federal agencies: May 1, 2024
- Added to the CISA list
- April 24, 2024
- Published
- April 22, 2024
- Severity
- Critical 9.8 CVSS 3.1
- Chance of attacks in the next 30 days (EPSS)
- 99.5% in the top 0.1% of all known vulnerabilities
- Weakness
- CWE-1336
- More details
- NVD · CVE.org · CISA
All references (7)
- https://www.crushftp.com/crush11wiki/Wiki.jsp?page=Update
- https://www.crushftp.com/crush10wiki/Wiki.jsp?page=Update
- https://www.reddit.com/r/cybersecurity/comments/1c850i2/all_versions_of_crush_ftp_are_vulnerable/
- https://www.bleepingcomputer.com/news/security/crushftp-warns-users-to-patch-exploited-zero-day-immediately/
- https://www.reddit.com/r/crowdstrike/comments/1c88788/situational_awareness_20240419_crushftp_virtual/
- https://www.rapid7.com/blog/post/2024/04/23/etr-unauthenticated-crushftp-zero-day-enables-complete-server-com…
- https://github.com/airbus-cert/CVE-2024-4040
More exploited flaws from CrushFTP
| Added | Vulnerability | Product | Severity | Attack chance |
|---|---|---|---|---|
| Jul 22, 2025 | CrushFTP Unprotected Alternate Channel | CrushFTP | Critical 9.0 | 93% |
| Apr 7, 2025 | Authentication Bypass | CrushFTP | Critical 9.8 | >99.9% |
Sources: Known Exploited Vulnerabilities (CISA, public domain), CVE records (cve.org) and EPSS (FIRST). The chance of attacks is the EPSS estimate that someone will try to exploit the flaw in the next 30 days.