CVE-2016-1909 in the critical feed json
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…
published 2016-01-15 10 y ago modified 2026-06-17 4 mo ago also EUVD-2016-3000
- cvss
- 9.8
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 71.3%
- EPSS 71.3% chance of exploitation in 30 days, percentile 99.4%
- public exploits
- 2
- Metasploit, Exploit-DB
Summary
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.
Timeline
- First public exploit (Metasploit auxiliary/scanner/ssh/fortinet_backdoor)
- Published
Exploit prediction
71.27% chance of exploitation in the next 30 days, higher than 99.4% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Metasploit auxiliary/scanner/ssh/fortinet_backdoor Fortinet SSH Backdoor Scanner metasploit auxiliary, normal rank, 2016-01-09
- EDB-43386 Fortinet FortiGate 4.x < 5.0.7 - SSH Backdoor Access remote, 2016-01-09
- exploit-db.com https://www.exploit-db.com/exploits/39224/ referenced PoC, tagged "exploit" by a source, unverified
- seclists.org http://seclists.org/fulldisclosure/2016/Jan/26 referenced PoC, tagged "exploit" by a source, unverified
- packetstormsecurity.com http://packetstormsecurity.com/files/135225/FortiGate-OS-5.0.7-SSH-Backdoor.html referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 10.0 | AV:N/AC:L/Au:N/C:C/I:C/A:C |
Classification
- Weakness
-
- CWE-264 Permissions, Privileges, and Access Controls
- Technology feeds
References
-
exploit-db.com
/exploits/39224/
exploit
-
seclists.org
/fulldisclosure/2016/Jan/26
mailing-list, exploit
-
packetstormsecurity.com
/files/135225/FortiGate-OS-5.0.7-SSH-Backdoor.html
exploit
- blog.fortinet.com /post/brief-statement-regarding-issues-found-with-fortios
-
securitytracker.com
/id/1034663
vdb-entry
- twitter.com /esizkur/status/686842135501508608
- fortiguard.com /advisory/multiple-products-ssh-undocumented-login-vulnerability
Sources
- CVE List CVE-2016-1909
- NVD CVE-2016-1909
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.