Critical severity9.8NVD Advisory· Published Jan 15, 2016· Updated Jun 17, 2026
CVE-2016-1909
CVE-2016-1909
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
13cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*+ 10 more
- cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*range: <=4.3.16
- cpe:2.3:o:fortinet:fortios:5.0:*:*:*:*:*:*:*
- cpe:2.3:o:fortinet:fortios:5.0.0:*:*:*:*:*:*:*
- cpe:2.3:o:fortinet:fortios:5.0.1:*:*:*:*:*:*:*
- cpe:2.3:o:fortinet:fortios:5.0.2:*:*:*:*:*:*:*
- cpe:2.3:o:fortinet:fortios:5.0.3:*:*:*:*:*:*:*
- cpe:2.3:o:fortinet:fortios:5.0.4:*:*:*:*:*:*:*
- cpe:2.3:o:fortinet:fortios:5.0.5:*:*:*:*:*:*:*
- cpe:2.3:o:fortinet:fortios:5.0.6:*:*:*:*:*:*:*
- cpe:2.3:o:fortinet:fortios:5.0.7:*:*:*:*:*:*:*
- (no CPE)range: <4.1.11, <4.2.16, <4.3.17, <5.0.8
- Range: <5.0.12, <5.2.5
- Range: <3.3.3
Patches
Vulnerability mechanics
References
7- packetstormsecurity.com/files/135225/FortiGate-OS-5.0.7-SSH-Backdoor.htmlnvdExploit
- seclists.org/fulldisclosure/2016/Jan/26nvdExploit
- www.exploit-db.com/exploits/39224/nvdExploit
- blog.fortinet.com/post/brief-statement-regarding-issues-found-with-fortiosnvd
- www.fortiguard.com/advisory/multiple-products-ssh-undocumented-login-vulnerabilitynvd
- www.securitytracker.com/id/1034663nvd
- twitter.com/esizkur/status/686842135501508608nvd
News mentions
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