CVE-2025-54309
CRITICAL CISA KEV EPSS 99.8%
Published Jul 18, 202511mo ago · Modified Jun 17, 20262w ago
9.8 CVSS 3.1
Published Jul 18, 2025 11mo ago
Last Modified Jun 17, 2026 2w ago
KEV Listed Jul 22, 2025 11mo ago
KEV Due Aug 12, 2025 325d overdue
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
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 High
Integrity High
Availability High
Threat Intelligence
CISA Known Exploited Overdue 325d
- Added
- Jul 22, 2025
- Due
- Aug 12, 2025
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
EPSS Exploit Probability
99.8% percentile
Exploit & Patch Status
Actively Exploited (KEV)
No Patch Available
Weaknesses 1
CWE-420
Affected Products 2
References 6
- bleepingcomputer.com https://www.bleepingcomputer.com/news/security/crushftp-zero-day-exploited-in-attacks-to-gain-admin-access-on-servers/
- cisa.gov https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-54309
- crushftp.com https://www.crushftp.com/crush11wiki/Wiki.jsp?page=CompromiseJuly2025
- rapid7.com https://www.rapid7.com/blog/post/crushftp-zero-day-exploited-in-the-wild/
- vicarius.io https://www.vicarius.io/vsociety/posts/cve-2025-54309-detect-crushftp-vulnerability
- vicarius.io https://www.vicarius.io/vsociety/posts/cve-2025-54309-mitigate-crushftp-vulnerability
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.