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CVE-2025-54309: CrushFTP Unprotected Alternate Channel Vulnerability
CrushFTP CrushFTP · in CISA KEV since 2025-07-22
2025-07-22added to KEV
2025-08-12federal remediation due date
94.91%EPSS exploit probability (30 days) 99.9th percentile
9.8 CRITICALCVSS 3.1
Unknownknown ransomware use
4days from NVD publication to KEV
What it is
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.
Required action (CISA)
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
| CWE | CWE-420 |
|---|---|
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD published | 2025-07-18 (Analyzed) |
Original records: NVD · CISA KEV · JSON: /api/cve/CVE-2025-54309.json · all KEV CVEs
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Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.