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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
CrushFTP CrushFTP
Default version status: unaffected
10 to < 10.8.5affected11 to < 11.3.4_23affected
References
- https://www.crushftp.com/crush11wiki/Wiki.jsp?page=CompromiseJuly2025 ↗
- https://www.rapid7.com/blog/post/crushftp-zero-day-exploited-in-the-wild/ ↗
- https://www.bleepingcomputer.com/news/security/crushftp-zero-day-exploited-in-attacks-to-gain-admin-access-on-servers/ ↗
- https://www.vicarius.io/vsociety/posts/cve-2025-54309-detect-crushftp-vulnerability ↗
- https://www.vicarius.io/vsociety/posts/cve-2025-54309-mitigate-crushftp-vulnerability ↗
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-54309 ↗