Overview
CrushFTP contains an authentication bypass vulnerability in the HTTP authorization header that allows a remote unauthenticated attacker to authenticate to any known or guessable user account (e.g., crushadmin), potentially leading to a full compromise.
https://www.crushftp.com/crush11wiki/Wiki.jsp?page=Update ; https://nvd.nist.gov/vuln/detail/CVE-2025-31161
Key Details
| Property | Value |
|---|---|
| CVE ID | CVE-2025-31161 |
| Vendor / Product | CrushFTP — CrushFTP |
| NVD Published | 2025-04-03 |
| NVD Last Modified | 2025-10-31 |
| CVSS 3.1 Score | 9.8 |
| CVSS 3.1 Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| Severity | CRITICAL |
| CWE | CWE-305 |
| CISA KEV Added | 2025-04-07 |
| CISA KEV Deadline | 2025-04-28 |
| Known Ransomware Use | ⚠️ Yes |
CVSS 3.1 Breakdown
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Required Action
CISA BOD 22-01 Deadline: 2025-04-28.
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Timeline
| Date | Event |
|---|---|
| 2025-04-07 | Added to CISA Known Exploited Vulnerabilities catalog |
| 2025-04-28 | CISA BOD 22-01 remediation deadline |
References
| Resource | Type |
|---|---|
| NVD — CVE-2025-31161 | Vulnerability Database |
| CISA KEV Catalog Entry | US Government |