An active debug code vulnerability in Fortinet FortiClientWindows 7.4.0 through 7.4.3, FortiClientWindows 7.2.0 through 7.2.10, FortiClientWindows 7.0 all versions may allow a local attacker to run the application step by step and retrieve the saved VPN user password

A exposure of sensitive system information to an unauthorized control sphere vulnerability in Fortinet FortiClientWindows 7.2.0 through 7.2.1, FortiClientWindows 7.0.13 through 7.0.14 may allow an unauthorized remote attacker to view application information via navigation to a hosted webpage, if Windows is configured to accept incoming connections to port 8053 (non-default setup)

A Cleartext Storage of Sensitive Information vulnerability [CWE-312] in FortiClient Windows and FortiClient Linux may permit a local authenticated user to retrieve VPN password via memory dump, due to JavaScript's garbage collector

A Cleartext Storage of Sensitive Information vulnerability [CWE-312] in FortiClient Windows and FortiClient Linux may permit a local authenticated user to retrieve VPN password via memory dump, due to JavaScript's garbage collector

An improper control of generation of code vulnerability [CWE-94] in FortiClientMacOS versions 7.0.0 and below and 6.4.5 and below may allow an authenticated attacker to hijack the MacOS camera without the user permission via the malicious dylib file.

An improper access control vulnerability in FortiClientMac before 6.0.5 may allow an attacker to affect the application's performance via modifying the contents of a file used by several FortiClientMac processes.

A clear text storage of sensitive information vulnerability in FortiClient for Mac may allow a local attacker to read sensitive information logged in the console window when the user connects to an SSL VPN Gateway.

Use of a hardcoded cryptographic key in the FortiGuard services communication protocol may allow a Man in the middle with knowledge of the key to eavesdrop on and modify information (URL/SPAM services in FortiOS 5.6, and URL/SPAM/AV services in FortiOS 6.0.; URL rating in FortiClient) sent and received from Fortiguard severs by decrypting these messages. Affected products include FortiClient for Windows 6.0.6 and below, FortiOS 6.0.7 and below, FortiClient for Mac OS 6.2.1 and below.

A stack buffer overflow vulnerability in FortiClient for Linux 6.2.1 and below may allow a user with low privilege to cause FortiClient processes running under root priviledge crashes via sending specially crafted "StartAvCustomScan" type IPC client requests to the fctsched process due the argv data not been well sanitized.

A Denial of service (DoS) vulnerability in FortiClient for Linux 6.2.1 and below may allow an user with low privilege to cause FortiClient processes running under root privilege crashes via sending specially crafted IPC client requests to the fctsched process due the nanomsg not been correctly validated.

A path traversal vulnerability [CWE-22] in FortiClientEMS versions 6.4.1 and below; 6.2.8 and below may allow an authenticated attacker to inject directory traversal character sequences to add/delete the files of the server via the name parameter of Deployment Packages.

An exposure of sensitive information to an unauthorized actor vulnerability [CWE-200] in FortiClient for Linux version 7.0.2 and below, 6.4.7 and below and 6.2.9 and below may allow an unauthenticated attacker to access the confighandler webserver via external binaries.

An exposure of sensitive information to an unauthorized actor vulnerabiltiy [CWE-200] in FortiClient for Mac versions 7.0.0 through 7.0.5 may allow a local authenticated attacker to obtain the SSL-VPN password in cleartext via running a logstream for the FortiTray process in the terminal.

An improper certificate validation vulnerability [CWE-295] in FortiClientWindows 6.4 all versions, 7.0.0 through 7.0.7, FortiClientMac 6.4 all versions, 7.0 all versions, 7.2.0 through 7.2.4, FortiClientLinux 6.4 all versions, 7.0 all versions, 7.2.0 through 7.2.4, FortiClientAndroid 6.4 all versions, 7.0 all versions, 7.2.0 and FortiClientiOS 5.6 all versions, 6.0.0 through 6.0.1, 7.0.0 through 7.0.6 SAML SSO feature may allow an unauthenticated attacker to man-in-the-middle the communication between the FortiClient and  both the service provider and the identity provider.

A improper limitation of a pathname to a restricted directory ('path traversal') in Fortinet FortiClientEMS versions 7.2.0 through 7.2.4, 7.0.0 through 7.0.13, 6.4.0 through 6.4.9, 6.2.0 through 6.2.9, 6.0.0 through 6.0.8, 1.2.1 through 1.2.5 allows attacker to perform a denial of service, read or write a limited number of files via specially crafted HTTP requests

An exposure of sensitive information to an unauthorized actor vulnerability [CWE-200] in FortiClientEMS versions 7.0.0 through 7.0.4, 7.0.6 through 7.0.7, in all 6.4 and 6.2 version management interface may allow an unauthenticated attacker to gain information on environment variables such as the EMS installation path.

FortiClient before 4.3.5.472 on Windows, before 4.0.3.134 on Mac OS X, and before 4.0 on Android; FortiClient Lite before 4.3.4.461 on Windows; FortiClient Lite 2.0 through 2.0.0223 on Android; and FortiClient SSL VPN before 4.0.2258 on Linux proceed with an SSL session after determining that the server's X.509 certificate is invalid, which allows man-in-the-middle attackers to obtain sensitive information by leveraging a password transmission that occurs before the user warning about the certificate problem.

The Endpoint Control protocol implementation in Fortinet FortiClient 5.2.3.091 for Android and 5.2.028 for iOS does not validate certificates, which makes it easier for man-in-the-middle attackers to spoof servers via a crafted certificate.

The qm class in Fortinet FortiClient 5.2.3.091 for Android uses a hardcoded encryption key of FoRtInEt!AnDrOiD, which makes it easier for attackers to obtain passwords and possibly other sensitive data by leveraging the key to decrypt data in the Shared Preferences.

A UNIX symbolic link (Symlink) Following (CWE-61) vulnerability in FortiClient for MacOS may allow a local and unprivileged user to overwrite privileged shell scripts executed during the installation phase via escalating their privileges to root.