{"cve":{"cve_id":"CVE-2015-3306","is_kev":true,"kev_date_added":"2026-10-08","kev_vendor_project":"ProFTPD","kev_product":"ProFTPD","kev_vulnerability_name":"ProFTPD Improper Access Control Vulnerability","kev_short_description":"ProFTPD contains an improper access control vulnerability that could allow remote attackers to read and write to arbitrary files via the site cpfr and site cpto commands.","kev_required_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.","kev_due_date":"2026-10-11","kev_known_ransomware":false,"kev_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","kev_cwes":["CWE-284"],"epss_score":0.99497,"epss_percentile":0.99945,"epss_as_of":"2026-10-15","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.","published_at":"2015-05-18T15:00:00Z","last_modified_at":"2026-10-09T16:17:18.210000Z","cvss_v3_score":10.0,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","cvss_v3_severity":"CRITICAL","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-284"],"nvd_references":["http://www.rapid7.com/db/modules/exploit/unix/ftp/proftpd_modcopy_exec","https://www.exploit-db.com/exploits/36803/","http://packetstormsecurity.com/files/131555/ProFTPd-1.3.5-Remote-Command-Execution.html","http://www.debian.org/security/2015/dsa-3263","http://packetstormsecurity.com/files/131567/ProFTPd-CPFR-CPTO-Proof-Of-Concept.html","http://packetstormsecurity.com/files/132218/ProFTPD-1.3.5-Mod_Copy-Command-Execution.html","http://lists.opensuse.org/opensuse-updates/2015-06/msg00020.html","http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157053.html","http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157054.html","http://www.securityfocus.com/bid/74238","https://www.exploit-db.com/exploits/36742/","http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157581.html","http://packetstormsecurity.com/files/131505/ProFTPd-1.3.5-File-Copy.html","http://packetstormsecurity.com/files/162777/ProFTPd-1.3.5-Remote-Command-Execution.html"],"vuln_status":"Analyzed","trending_score":null,"is_trending":false,"has_trended":true,"trended_number_one":true,"trending_peak_score":0.7124279333333333,"trending_peak_rank":1,"started_trending_at":"2026-10-08T21:38:59.302782Z","trended_number_one_at":"2026-10-09T09:38:59.279831Z","summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:39.878444Z","updated_at":"2026-10-18T05:04:18.215972Z"},"effective_severity":"CRITICAL","badges":["kev","exploit","news","was_number_one","epss"],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"S","name":"Scope","value":"C","value_label":"Changed"},{"metric":"C","name":"Confidentiality","value":"H","value_label":"High"},{"metric":"I","name":"Integrity","value":"H","value_label":"High"},{"metric":"A","name":"Availability","value":"H","value_label":"High"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"debian","vendor_name":"Debian","product_slug":"debian-linux","product_name":"debian_linux","version_start":"7.0","version_start_inclusive":true,"version_end":"7.0","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*"},{"vendor_slug":"debian","vendor_name":"Debian","product_slug":"debian-linux","product_name":"debian_linux","version_start":"8.0","version_start_inclusive":true,"version_end":"8.0","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*"},{"vendor_slug":"debian","vendor_name":"Debian","product_slug":"debian-linux","product_name":"debian_linux","version_start":"9.0","version_start_inclusive":true,"version_end":"9.0","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"},{"vendor_slug":"fedoraproject","vendor_name":"fedoraproject","product_slug":"fedora","product_name":"fedora","version_start":"20","version_start_inclusive":true,"version_end":"20","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:fedoraproject:fedora:20:*:*:*:*:*:*:*"},{"vendor_slug":"fedoraproject","vendor_name":"fedoraproject","product_slug":"fedora","product_name":"fedora","version_start":"21","version_start_inclusive":true,"version_end":"21","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:fedoraproject:fedora:21:*:*:*:*:*:*:*"},{"vendor_slug":"fedoraproject","vendor_name":"fedoraproject","product_slug":"fedora","product_name":"fedora","version_start":"22","version_start_inclusive":true,"version_end":"22","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:*"},{"vendor_slug":"opensuse","vendor_name":"openSUSE","product_slug":"tumbleweed","product_name":"Tumbleweed","version_start":null,"version_start_inclusive":null,"version_end":null,"version_end_inclusive":null,"cpe23_uri":"cpe:2.3:o:opensuse:tumbleweed:-:*:*:*:*:*:*:*"},{"vendor_slug":"proftpd","vendor_name":"proftpd","product_slug":"proftpd","product_name":"proftpd","version_start":"1.3.5","version_start_inclusive":true,"version_end":"1.3.5","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:proftpd:proftpd:1.3.5:*:*:*:*:*:*:*"},{"vendor_slug":"suse","vendor_name":"SUSE","product_slug":"linux-enterprise-server","product_name":"linux_enterprise_server","version_start":"15","version_start_inclusive":true,"version_end":"15","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:suse:linux_enterprise_server:15:sp7:*:*:-:-:*:*"},{"vendor_slug":"suse","vendor_name":"SUSE","product_slug":"linux-enterprise-server","product_name":"linux_enterprise_server","version_start":"15","version_start_inclusive":true,"version_end":"15","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:suse:linux_enterprise_server:15:sp7:*:*:-:sap:*:*"}],"exploit_refs":[{"source":"exploit-db","kind":"exploit-db","url":"https://www.exploit-db.com/exploits/49908","title":"ProFTPd 1.3.5 - 'mod_copy' Remote Command Execution (2)","author":"Shellbr3ak","disclosed_at":"2021-05-26"},{"source":"exploit-db","kind":"exploit-db","url":"https://www.exploit-db.com/exploits/37262","title":"ProFTPd 1.3.5 - 'mod_copy' Command Execution (Metasploit)","author":"Metasploit","disclosed_at":"2015-06-10"},{"source":"exploit-db","kind":"exploit-db","url":"https://www.exploit-db.com/exploits/36803","title":"ProFTPd 1.3.5 - 'mod_copy' Remote Command Execution","author":"R-73eN","disclosed_at":"2015-04-21"},{"source":"exploit-db","kind":"exploit-db","url":"https://www.exploit-db.com/exploits/36742","title":"ProFTPd 1.3.5 - File Copy","author":"anonymous","disclosed_at":"2015-04-13"},{"source":"nuclei","kind":"nuclei","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/network/cves/2015/CVE-2015-3306.yaml","title":"ProFTPd - Remote Code Execution","author":"pdteam","disclosed_at":null}],"news":[{"id":2476,"source":"The Hacker News","url":"https://thehackernews.com/2026/10/flax-typhoon-exploits-five-flaws-as.html","title":"Flax Typhoon Exploits Five Flaws as CISA Sets October 11 Deadline for Federal Agencies","summary":"The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Thursday added five security flaws to its Known Exploited Vulnerabilities (KEV) catalog, following their abuse by a China-linked threat actor known as Flax Typhoon.\n\nThe vulnerabilities in question are listed below -\n\n\n  CVE-2015-3306 (CVSS score: 10.0) - An improper access control vulnerability in ProFTPD that could allow","thumbnail_url":"https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj7eHv-Bv5ZZISuomW-aV50jkJ7Aqg-S56iEuV2y8Kl9w7SB4cp-zTDj8WicvMzPcw5tXuq-o5rIG0KPPmKxPZPcR5V47hVwbGvi7aLNE_1wgq_iDkNERTzz5kc9ivagiHEKM9BcsYjJRRB0_HWk_gsi9jzHudV_-4Ax4dUFaV5vpDlUnW2PywmEZHzN8mm/s1600/kevs.jpg","author":"info@thehackernews.com (The Hacker News)","published_at":"2026-10-09T12:21:51Z","fetched_at":"2026-10-09T13:20:29.581782Z","trending_score":0.0032696782698744824,"cve_ids":["CVE-2015-3306"]}],"references":[{"url":"http://www.rapid7.com/db/modules/exploit/unix/ftp/proftpd_modcopy_exec","source_type":"MISC","tags":[]},{"url":"https://www.exploit-db.com/exploits/36803/","source_type":"EXPLOIT","tags":["exploit"]},{"url":"http://packetstormsecurity.com/files/131555/ProFTPd-1.3.5-Remote-Command-Execution.html","source_type":"EXPLOIT","tags":["exploit"]},{"url":"http://www.debian.org/security/2015/dsa-3263","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"http://packetstormsecurity.com/files/131567/ProFTPd-CPFR-CPTO-Proof-Of-Concept.html","source_type":"EXPLOIT","tags":["exploit"]},{"url":"http://packetstormsecurity.com/files/132218/ProFTPD-1.3.5-Mod_Copy-Command-Execution.html","source_type":"EXPLOIT","tags":["exploit"]},{"url":"http://lists.opensuse.org/opensuse-updates/2015-06/msg00020.html","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157053.html","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157054.html","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"http://www.securityfocus.com/bid/74238","source_type":"MISC","tags":[]},{"url":"https://www.exploit-db.com/exploits/36742/","source_type":"EXPLOIT","tags":["exploit"]},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157581.html","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"http://packetstormsecurity.com/files/131505/ProFTPd-1.3.5-File-Copy.html","source_type":"EXPLOIT","tags":["exploit"]},{"url":"http://packetstormsecurity.com/files/162777/ProFTPd-1.3.5-Remote-Command-Execution.html","source_type":"EXPLOIT","tags":["exploit"]}],"timeline":[{"type":"exploit_known","at":"2015-04-13T00:00:00Z","label":"Public exploit available","source":"exploit-db"},{"type":"published","at":"2015-05-18T15:00:00Z","label":"CVE published","source":null},{"type":"poc_available","at":"2026-06-24T00:29:48.638073Z","label":"Public PoC available","source":"nuclei"},{"type":"cisa_reported","at":"2026-10-08T00:00:00Z","label":"Added to CISA KEV catalog","source":"kev"},{"type":"cvss_changed","at":"2026-10-08T19:37:29.207977Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-10-08T19:37:29.207977Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-10-08T19:37:29.207977Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"started_trending","at":"2026-10-08T21:38:59.302782Z","label":"Started trending","source":null},{"type":"reached_number_one","at":"2026-10-09T09:38:59.279831Z","label":"Reached #1 trending","source":null},{"type":"first_article","at":"2026-10-09T12:21:51Z","label":"First news coverage","source":"The Hacker News"}]}