A buffer underwrite vulnerability in the firmware verification routine of FortiOS before 7.0.1 may allow an attacker located in the adjacent network to potentially execute arbitrary code via a specifically crafted firmware image.
When traffic other than HTTP/S (eg: SSH traffic, etc...) traverses the FortiGate in version below 6.2.5 and below 6.4.2 on port 80/443, it is not redirected to the transparent proxy policy for processing, as it doesn't have a valid HTTP header.
An insufficient logging vulnerability in FortiGate before 6.4.1 may allow the traffic from an unauthenticated attacker to Fortinet owned IP addresses to go unnoticed.
A Default Configuration vulnerability in FortiOS may allow an unauthenticated attacker on the same subnet to intercept sensitive information by impersonating the LDAP server.
A cleartext storage in a file or on disk (CWE-313) vulnerability in FortiOS SSL VPN 6.2.0 through 6.2.2, 6.0.9 and earlier and FortiProxy 2.0.0, 1.2.9 and earlier may allow an attacker to retrieve a logged-in SSL VPN user's credentials should that attacker be able to read the session file stored on the targeted device's system.
An information exposure vulnerability in FortiOS 6.2.3, 6.2.0 and below may allow an unauthenticated attacker to gain platform information such as version, models, via parsing a JavaScript file through admin webUI.