A authentication bypass using an alternate path or channel in Fortinet FortiClientWindows version 7.4.0, versions 7.2.4 through 7.2.0, versions 7.0.12 through 7.0.0, and 6.4.10 through 6.4.0 allows low privilege attacker to execute arbitrary code with high privilege via spoofed named pipe messages.

An improper verification of cryptographic signature vulnerability [CWE-347] in FortiClient MacOS version 7.4.0, version 7.2.4 and below, version 7.0.10 and below, version 6.4.10 and below may allow a local authenticated attacker to swap the installer with a malicious package via a race condition during the installation process.

A untrusted search path in Fortinet FortiClientWindows versions 7.4.0, versions 7.2.4 through 7.2.0, versions 7.0.12 through 7.0.0 allows an attacker to run arbitrary code via DLL hijacking and social engineering.

DHCP can add routes to a client’s routing table via the classless static route option (121). VPN-based security solutions that rely on routes to redirect traffic can be forced to leak traffic over the physical interface. An attacker on the same local network can read, disrupt, or possibly modify network traffic that was expected to be protected by the VPN.