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CVE-2024-4040

98
FAUCET Score

CVE-2024-4040 is a critical server-side template injection vulnerability affecting all versions of CrushFTP prior to 10.7.1 and 11.1.0. This flaw allows unauthenticated remote attackers to bypass authentication, read arbitrary files outside the VFS sandbox, and achieve remote code execution. With a CVSS score of 10.0 (Critical) and an EPSS score indicating extremely high exploitability, the vulnerability presents a severe risk. It is actively exploited in the wild, with public proof-of-concept code and Metasploit modules available, and has garnered significant community discussion and media attention.

Impacted Technologies

VendorProductVersion(s)CPE
>= 10.0.0, < 10.7.1CPE matchmatch criteria
cpe:2.3:a:crushftp:crushftp:*:*:*:*:*:*:*:*
>= 11.0.0, < 11.1.0CPE matchmatch criteria
cpe:2.3:a:crushftp:crushftp:*:*:*:*:*:*:*:*
>= 10.0, < 10.7.1CPE match
cpe:2.3:a:crushftp:crushftp:*:*:*:*:*:*:*:*
>= 11.0, < 11.1.0CPE match
cpe:2.3:a:crushftp:crushftp:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
99.54%
Probability of exploitation in next 30 days
EPSS Percentile
99.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Added to KEV · Apr 24, 2024
Nuclei: CVE-2024-4040 · Apr 23, 2024
This CVE's current EPSS score of 0.9954 is in the 100th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
github.com / airbus-cert/CVE-2024-4040
ExploitThird Party Advisory
bleepingcomputer.com / news/security/crushftp-warns-users-to-patch-exploited-zero-day-immediately
Press/Media CoverageThird Party Advisory
crushftp.com / crush10wiki/Wiki.jsp
PatchVendor Advisory
crushftp.com / crush11wiki/Wiki.jsp
PatchVendor Advisory
rapid7.com / blog/post/2024/04/23/etr-unauthenticated-crushftp-zero-day-enables-complete-server-compromise
Third Party Advisory
reddit.com / r/crowdstrike/comments/1c88788/situational_awareness_20240419_crushftp_virtual
ExploitIssue Tracking
reddit.com / r/cybersecurity/comments/1c850i2/all_versions_of_crush_ftp_are_vulnerable
Issue TrackingPatch