CVE-2025-54309

CRITICAL CISA KEV EPSS 99.8%
Published Jul 18, 202511mo ago · Modified Jun 17, 20262w ago
9.8 CVSS 3.1
Critical
Find Similar
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
9.8
Exploitability
3.9
Impact
5.9
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

VendorProductVersionRange
crushftpcrushftp*≥10.0.0  –  <10.8.5
crushftpcrushftp*≥11.0.0  –  <11.3.4_23

References 6

  • bleepingcomputer.com https://www.bleepingcomputer.com/news/security/crushftp-zero-day-exploited-in-attacks-to-gain-admin-access-on-servers/
    Press/Media Coverage
  • cisa.gov https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-54309
    US Government Resource
  • crushftp.com https://www.crushftp.com/crush11wiki/Wiki.jsp?page=CompromiseJuly2025
    Vendor Advisory
  • rapid7.com https://www.rapid7.com/blog/post/crushftp-zero-day-exploited-in-the-wild/
    Press/Media Coverage
  • vicarius.io https://www.vicarius.io/vsociety/posts/cve-2025-54309-detect-crushftp-vulnerability
    Third Party Advisory
  • vicarius.io https://www.vicarius.io/vsociety/posts/cve-2025-54309-mitigate-crushftp-vulnerability
    Third Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.