CVEvulnerability

CVE-2025-54309

9.8 CRITICAL Known exploited Published 2025-07-18 Modified 2026-06-17 Official page ↗

CISA Known Exploited Vulnerability

CrushFTP Unprotected Alternate Channel Vulnerability — CrushFTP CrushFTP

CrushFTP contains an unprotected alternate channel vulnerability. When the DMZ proxy feature is not used, mishandles AS2 validation and consequently allows remote attackers to obtain admin access via HTTPS.

Added to KEV: 2025-07-22
Remediation due: 2025-08-12
Ransomware use: Unknown
Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Notes: https://www.crushftp.com/crush11wiki/Wiki.jsp?page=CompromiseJuly2025 ; https://nvd.nist.gov/vuln/detail/CVE-2025-54309

Status: Analyzed
Published: 2025-07-18
Last modified: 2026-06-17
Assigner: [email protected]
CVSS 3.1 ([email protected]): 9.0 CRITICAL — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS 3.1 ([email protected]): 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses: CWE-420

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.

Affected configurations

• crushftp crushftp (>= 10.0.0 < 10.8.5) • crushftp crushftp (>= 11.0.0 < 11.3.4 23)

Weakness · CWE (1)

CWE-420 Unprotected Alternate Channel weakness

References