{"id":"CVE-2016-1909","url":"https://www.cyber-defence.io/tools/cve/CVE-2016-1909","generatedAt":"2026-10-27T22:04:15.466Z","title":"Fortinet FortiAnalyzer before 5.0.12 and 5.2.x before 5.2.5; FortiSwitch 3.3.x before 3.3.3; FortiCache 3.0.x before 3.0.8; and FortiOS 4.1.x before 4.1.11, 4.2.x before 4.2.16, 4.3.x before 4.3.17 and 5.0.x before 5.0.8 have a hardcoded passphrase for…","description":"Fortinet FortiAnalyzer before 5.0.12 and 5.2.x before 5.2.5; FortiSwitch 3.3.x before 3.3.3; FortiCache 3.0.x before 3.0.8; and FortiOS 4.1.x before 4.1.11, 4.2.x before 4.2.16, 4.3.x before 4.3.17 and 5.0.x before 5.0.8 have a hardcoded passphrase for the Fortimanager_Access account, which allows remote attackers to obtain administrative access via an SSH session.","published":"2016-01-15T20:59:00.000Z","lastModified":"2026-06-17T00:42:51.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-264"],"affected":["fortinet/fortios"],"epss":{"score":0.71268,"percentile":0.99407,"date":"2026-10-26","history":[{"date":"2026-09-21","score":0.67418,"percentile":0.99301},{"date":"2026-09-22","score":0.71268,"percentile":0.99382}]},"kev":{"listed":false},"exploits":{"count":1,"verified":false,"firstPublished":"2016-01-09","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":43386,"kind":"exploit","title":"Fortinet FortiGate 4.x < 5.0.7 - SSH Backdoor Access","url":"https://www.exploit-db.com/exploits/43386","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/linux/remote/43386.py","file":"exploits/linux/remote/43386.py","published":"2016-01-09","added":"2017-12-21","updated":"2018-01-08","author":"operator8203","type":"remote","platform":"linux","port":null,"verified":false,"codes":["CVE-2016-1909"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":"http://www.exploit-db.com/screenshots/idlt43500/exploit.png","referenceUrl":"http://seclists.org/fulldisclosure/2016/Jan/26"}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 71.3%, higher than 99% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://blog.fortinet.com/post/brief-statement-regarding-issues-found-with-fortios","source":"cve@mitre.org"},{"url":"http://packetstormsecurity.com/files/135225/FortiGate-OS-5.0.7-SSH-Backdoor.html","tags":["Exploit"],"source":"cve@mitre.org"},{"url":"http://seclists.org/fulldisclosure/2016/Jan/26","tags":["Exploit"],"source":"cve@mitre.org"},{"url":"http://www.fortiguard.com/advisory/multiple-products-ssh-undocumented-login-vulnerability","source":"cve@mitre.org"},{"url":"http://www.securitytracker.com/id/1034663","source":"cve@mitre.org"},{"url":"https://twitter.com/esizkur/status/686842135501508608","source":"cve@mitre.org"},{"url":"https://www.exploit-db.com/exploits/39224/","tags":["Exploit"],"source":"cve@mitre.org"},{"url":"http://blog.fortinet.com/post/brief-statement-regarding-issues-found-with-fortios","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://packetstormsecurity.com/files/135225/FortiGate-OS-5.0.7-SSH-Backdoor.html","tags":["Exploit"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://seclists.org/fulldisclosure/2016/Jan/26","tags":["Exploit"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.fortiguard.com/advisory/multiple-products-ssh-undocumented-login-vulnerability","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id/1034663","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://twitter.com/esizkur/status/686842135501508608","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/39224/","tags":["Exploit"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2016-1909","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}