CRITICAL CISA KEV Actively Exploited

CVE-2025-54309

CVSS v3

9

CRITICAL

EPSS Score

77.8%

exploit probability

CISA KEV

Yes

known exploited

Exploitation

active

SSVC status

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.

CISA Known Exploited Vulnerability

Date Added
7/22/2025
Patch Due Date
8/12/2025
Ransomware Use
Unknown

Technical details

CVSS v3 Vector
3.1
Published
7/18/2025
Last Modified
11/5/2025

Frequently asked questions

What is CVE-2025-54309?

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.

Is CVE-2025-54309 actively exploited?

Yes. CVE-2025-54309 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 8/12/2025.

What is the CVSS score for CVE-2025-54309?

CVE-2025-54309 has a CVSS v3 base score of 9 (CRITICAL severity), with vector string 3.1.

Is CVE-2025-54309 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.