CVE-2025-54309

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...

Basic Information

CVE State: PUBLISHED
Reserved Date: July 18, 2025
Published Date: July 18, 2025
Last Updated: October 21, 2025
Vendor: CrushFTP
Product: CrushFTP
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.
Tags

CVSS Scores

CVSS v3.1

9.0 - CRITICAL

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

SSVC Information

Exploitation: active
Technical Impact: total

Exploit Status

Exploited in the Wild: Yes (2026-06-01 10:37:11 UTC) Source

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

Known Exploited Vulnerability Information

Source	Added Date
CVE	2026-06-01 10:37:11 UTC

Timeline

CVE ID Reserved

July 18, 2025
CVE Published to Public

July 18, 2025
Added to KEVIntel

June 01, 2026