{
  "id": "CVE-2015-3306",
  "url": "https://spydr.io/cve/CVE-2015-3306",
  "published": "2015-05-18T15:59:10.743Z",
  "modified": "2026-10-08T18:17:10.857Z",
  "score": 10,
  "severity": "critical",
  "cvss_version": "3.1",
  "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
  "score_source": "CISA ADP",
  "epss": 0.96752,
  "epss_percentile": 0.99887,
  "exploited": true,
  "kev": {
    "added": "2026-10-08",
    "due": "2026-10-11",
    "action": "Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.",
    "ransomware": "Unknown",
    "name": "ProFTPD Improper Access Control Vulnerability",
    "notes": "This vulnerability could affect an open-source component, third-party library, protocol, or proprietary implementation that could be used by different products. For more information, please see: http://www.proftpd.org/ ; https://lists.debian.org/debian-security-announce/2015/msg00154.html ; https://lists.opensuse.org/archives/list/updates@lists.opensuse.org/message/WE6YZRG5UVXMGQ7IVDRYBPIWV4M6UUGM/ ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2015-3306"
  },
  "ssvc_exploitation": "active",
  "vendors": [
    "proftpd"
  ],
  "products": [
    "proftpd"
  ],
  "cwes": [
    "CWE-284"
  ],
  "description": "The mod_copy module in ProFTPD 1.3.5 allows remote attackers to read and write to arbitrary files via the site cpfr and site cpto commands.",
  "status": "Modified",
  "score_type": "Secondary",
  "scores": {
    "cvss_v40": null,
    "cvss_v31": 10,
    "cvss_v30": null
  },
  "references": [
    {
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157053.html",
      "tags": []
    },
    {
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157054.html",
      "tags": []
    },
    {
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157581.html",
      "tags": []
    },
    {
      "url": "http://lists.opensuse.org/opensuse-updates/2015-06/msg00020.html",
      "tags": []
    },
    {
      "url": "http://packetstormsecurity.com/files/131505/ProFTPd-1.3.5-File-Copy.html",
      "tags": []
    },
    {
      "url": "http://packetstormsecurity.com/files/131555/ProFTPd-1.3.5-Remote-Command-Execution.html",
      "tags": []
    },
    {
      "url": "http://packetstormsecurity.com/files/131567/ProFTPd-CPFR-CPTO-Proof-Of-Concept.html",
      "tags": []
    },
    {
      "url": "http://packetstormsecurity.com/files/132218/ProFTPD-1.3.5-Mod_Copy-Command-Execution.html",
      "tags": []
    },
    {
      "url": "http://packetstormsecurity.com/files/162777/ProFTPd-1.3.5-Remote-Command-Execution.html",
      "tags": []
    },
    {
      "url": "http://www.debian.org/security/2015/dsa-3263",
      "tags": []
    },
    {
      "url": "http://www.rapid7.com/db/modules/exploit/unix/ftp/proftpd_modcopy_exec",
      "tags": []
    },
    {
      "url": "http://www.securityfocus.com/bid/74238",
      "tags": []
    },
    {
      "url": "https://www.exploit-db.com/exploits/36742/",
      "tags": [
        "Exploit"
      ]
    },
    {
      "url": "https://www.exploit-db.com/exploits/36803/",
      "tags": [
        "Exploit"
      ]
    },
    {
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-3306",
      "tags": []
    }
  ],
  "nvd_url": "https://nvd.nist.gov/vuln/detail/CVE-2015-3306",
  "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."
    }
  ]
}