Vulnerability in Crushftp
CVE-2025-31161
CrushFTP 10 before 10.8.4 and 11 before 11.3.1 allows authentication bypass and takeover of the crushadmin account (unless a DMZ proxy instance is used), as exploited in the wild in March and April 2025, aka "Unauthenticated HTTP(S) port a…
EPSS: 0.889 (99.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Crushftp — versions 10, 11
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
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.
Known ransomware campaign use: yes.
Public proof-of-concept exploits
References
Frequently asked questions
- What is CVE-2025-31161?
- CVE-2025-31161 is a critical-severity vulnerability in Crushftp, classified under Authentication Bypass by Primary Weakness. CVSS score: 9.8/10. Published 2025-04-03.
- How severe is CVE-2025-31161?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2025-31161 known to be exploited?
- Yes. CVE-2025-31161 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2025-04-07), indicating it is being actively exploited. 37 public proof-of-concept repositories are indexed.