{
  "id": "CVE-2025-54309",
  "url": "https://spydr.io/cve/CVE-2025-54309",
  "published": "2025-07-18T19:15:25.353Z",
  "modified": "2026-06-17T09:39:49.643Z",
  "score": 9.8,
  "severity": "critical",
  "cvss_version": "3.1",
  "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "score_source": "NVD",
  "epss": 0.94905,
  "epss_percentile": 0.99859,
  "exploited": true,
  "kev": {
    "added": "2025-07-22",
    "due": "2025-08-12",
    "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.",
    "ransomware": "Unknown",
    "name": "CrushFTP Unprotected Alternate Channel Vulnerability",
    "notes": "https://www.crushftp.com/crush11wiki/Wiki.jsp?page=CompromiseJuly2025 ; https://nvd.nist.gov/vuln/detail/CVE-2025-54309"
  },
  "ssvc_exploitation": "active",
  "vendors": [
    "CrushFTP"
  ],
  "products": [
    "CrushFTP"
  ],
  "cwes": [
    "CWE-420"
  ],
  "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.",
  "status": "Analyzed",
  "score_type": "Primary",
  "scores": {
    "cvss_v40": null,
    "cvss_v31": 9.8,
    "cvss_v30": null
  },
  "references": [
    {
      "url": "https://www.bleepingcomputer.com/news/security/crushftp-zero-day-exploited-in-attacks-to-gain-admin-access-on-servers/",
      "tags": [
        "Press/Media Coverage"
      ]
    },
    {
      "url": "https://www.crushftp.com/crush11wiki/Wiki.jsp?page=CompromiseJuly2025",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://www.rapid7.com/blog/post/crushftp-zero-day-exploited-in-the-wild/",
      "tags": [
        "Press/Media Coverage"
      ]
    },
    {
      "url": "https://www.vicarius.io/vsociety/posts/cve-2025-54309-detect-crushftp-vulnerability",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.vicarius.io/vsociety/posts/cve-2025-54309-mitigate-crushftp-vulnerability",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-54309",
      "tags": [
        "US Government Resource"
      ]
    }
  ],
  "nvd_url": "https://nvd.nist.gov/vuln/detail/CVE-2025-54309",
  "covered_in": [],
  "attribution": [
    {
      "source": "NVD",
      "url": "https://nvd.nist.gov",
      "notice": "This product uses data from the NVD API but is not endorsed or certified by the NVD."
    },
    {
      "source": "CISA KEV",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "notice": "Known exploited vulnerabilities from the CISA KEV catalog."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss",
      "notice": "Exploit prediction scores from FIRST EPSS."
    }
  ]
}