CVE-2025-54309
CriticalActively exploited (CISA KEV)
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.
SeverityCritical
CVSS9.0
Exploit probability—
ProductCrushFTP
PublishedJul 18, 2025
First seenJul 18, 2025
Added to KEVJul 22, 2025
Weakness typeCWE-420CWE-420
How to fix
CISA 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.
CISA due date: Aug 12, 2025Update
- crushftp crushftp10.8.5, 11.3.4_23 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| crushftp crushftp | 10.0.0 ≤ v < 10.8.5, 11.0.0 ≤ v < 11.3.4_23 | 10.8.5, 11.3.4_23 |
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