CVE-2025-54309CrushFTP 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 expl…
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CISA lists it as known exploited since Jul 22, 2025; federal agencies had to remediate by Aug 12, 2025. Treat that date as your deadline.
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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.
- CVSS
- 9.0 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
- Weakness (CWE)
- CWE-420
- Known exploited
- Added to CISA KEV Jul 22, 2025; federal remediation due Aug 12, 2025Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- EPSS (exploitation in the next 30 days)
- 95.11% (percentile 100)
- Assigned by
- mitre
- NVD analysis
- Analyzed
- Record last updated
- Oct 21, 2025
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
CrushFTP CrushFTP crushftp:crushftp (from the name) | from 10 before 10.8.5; from 11 before 11.3.4_23 | CNA record |
crushftp crushftp crushftp:crushftp | from 10.0.0 before 10.8.5; from 11.0.0 before 11.3.4_23 | NVD |
References
- https://www.crushftp.com/crush11wiki/Wiki.jsp?page=CompromiseJuly2025vendor-advisory
- https://www.rapid7.com/blog/post/crushftp-zero-day-exploited-in-the-wild/press/media-coverage
- https://www.bleepingcomputer.com/news/security/crushftp-zero-day-exploited-in-attacks-to-gain-admin-access-on-servers/press/media-coverage
- https://www.vicarius.io/vsociety/posts/cve-2025-54309-detect-crushftp-vulnerabilitythird-party-advisory
- https://www.vicarius.io/vsociety/posts/cve-2025-54309-mitigate-crushftp-vulnerabilitythird-party-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-54309us-government-resource
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.