UpHeron
All vulnerabilities

Servers and applications

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 access." A race condition exists in the AWS4-HMAC (compatible with S3) authorization method of the HTTP component of the FTP server. The server first verifies…

Actively exploited: CISA added it to its Known Exploited Vulnerabilities catalog on 7 Apr 2025.

Severity
Critical 9.8
Published
3 Apr 2025
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
10.8.4, 11.3.1
Sources
NVD

Affected software

SoftwareAffected versions
CrushFTPServers and applications · cpe:a:crushftp:crushftp
  • From 10.0.0 before 10.8.4
  • From 11.0.0 before 11.3.1

Known exploited

CISA name
CrushFTP Authentication Bypass Vulnerability
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.
Due for US agencies
28 Apr 2025
Used in ransomware
Yes, known

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2025-31161
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2025-31161