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CVE-2025-54309

Published: Jul 18, 2025Updated: Nov 5, 2025 Sources: CVE List NVD BDUCWE-420
9.0CRITICAL
NVD MITRE
EPSS Score
92.0%
Top 0.2%
CISA KEV
Active Exploitation
Since Jul 22, 2025
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Nuclei · OpenVAS

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:NS:CC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-420

Affected Products

Converge Technology Solutions
commercialaka crushftp
CrushFTPOn-prem
Cloud & SaaS
CrushFTP
commercial
CrushFTPOn-prem
Communications / email-server-client
and 1 more affected products View all →

Exploitability

CISA Known Exploited Vulnerability
Added to KEV:Jul 22, 2025
Remediation due:Aug 12, 2025

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.

Official Patch Available
Is your org exposed to CVE-2025-54309?We'll check your whole external perimeter for exposure — free. Check my exposure

References

https://www.crushftp.com/crush11wiki/Wiki.jsp?page=CompromiseJuly2025
crushftp.com
https://www.bleepingcomputer.com/news/security/new-crushftp-zero-day-exploited-in-attacks-to-hijack-servers/
bleepingcomputer.com
https://www.crushftp.com/crush11wiki/Wiki.jsp?page=CompromiseJuly2025
crushftp.com
and 5 more references View all →

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