CVE-2025-54309 KEV
9.0
CRITICAL · CVSS 3.1 · EPSS 94.9% (pctl 100)
Patch first
On CISA KEV — known exploited in the wild, due 2025-08-12.
Description
CrushFTP 10 before 10.8.5 and 11 before 11.3.4_23, when the DMZ proxy feature is not used, mishandles AS2 validation and consequently allows remote attackers to obtain admin access via HTTPS, as exploited in the wild in July 2025.
Scoring
| CVSS | 9.0 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H |
| EPSS | 94.91% — more likely to be exploited than 100% of all CVEs |
| Weakness | CWE-420 |
| On CISA KEV | yes — remediate by 2025-08-12 |
| Public exploit | none known |
| Published | 2025-07-18 |
| Last modified | 2026-06-17 |
CISA KEV
| Name | CrushFTP Unprotected Alternate Channel Vulnerability |
|---|---|
| Added | 2025-07-22 |
| Due | 2025-08-12 |
| Vendor / product | CrushFTP / CrushFTP |
| Ransomware use | none reported |
Affected (1)
| Vendor | Product |
|---|---|
| crushftp | crushftp |
References
- https://www.bleepingcomputer.com/news/security/crushftp-zero-day-exploited-in-attacks-to-gain-admin-access-on-servers/
- https://www.crushftp.com/crush11wiki/Wiki.jsp?page=CompromiseJuly2025
- https://www.rapid7.com/blog/post/crushftp-zero-day-exploited-in-the-wild/
- https://www.vicarius.io/vsociety/posts/cve-2025-54309-detect-crushftp-vulnerability
- https://www.vicarius.io/vsociety/posts/cve-2025-54309-mitigate-crushftp-vulnerability
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-54309
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