Risk Letters

Exploited vulnerability

CVE-2025-54309

TLP:CLEAR

CrushFTP Unprotected Alternate Channel Vulnerability

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.

Facts

  • Vendor: CrushFTP
  • Product: CrushFTP
  • CVSS: 9
  • EPSS (probability of exploitation within 30 days): 93.5 %
  • On CISA's Known Exploited Vulnerabilities list since: 22 July 2025
  • First known exploitation: 22 July 2025
  • CISA's deadline for US federal agencies: 12 August 2025
  • Weakness: CWE-420
  • First seen by Risk Letters: 22 July 2025

Members see which Nordic sectors the flaw hits, and what to do about it.

Get the full brief

Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD