A heap-based buffer overflow vulnerability [CWE-122] in FortiOS and FortiProxy SSL-VPN may allow a remote attacker to execute arbitrary code or commands via specifically crafted requests.

Workaround:

Disable SSL-VPN.

A loop with unreachable exit condition ('infinite loop') in Fortinet FortiOS version 7.2.0 through 7.2.4, FortiOS version 7.0.0 through 7.0.10, FortiOS 6.4 all versions, FortiOS 6.2 all versions, FortiOS 6.0 all versions, FortiProxy version 7.2.0 through 7.2.3, FortiProxy version 7.0.0 through 7.0.9, FortiProxy 2.0 all versions, FortiProxy 1.2 all versions, FortiProxy 1.1 all versions, FortiProxy 1.0 all versions, FortiWeb version 7.2.0 through 7.2.1, FortiWeb version 7.0.0 through 7.0.6, FortiWeb 6.4 all versions, FortiWeb 6.3 all versions allows attacker to perform a denial of service via specially crafted HTTP requests.

A stack-based buffer overflow [CWE-121] vulnerability in Fortinet FortiOS version 7.2.4 through 7.2.8 and version 7.4.0 through 7.4.4 allows a remote unauthenticated attacker to execute arbitrary code or commands via crafted UDP packets through the CAPWAP control, provided the attacker were able to evade FortiOS stack protections and provided the fabric service is running on the exposed interface.

A heap-based buffer overflow vulnerability [CWE-122] in FortiOS cwstad daemon may allow an authenticated attacker to execute arbitrary code or commands via specifically crafted requests.

An improper neutralization of input during web page generation ('Cross-site Scripting') vulnerability [CWE-79] in FortiOS and FortiProxy GUI may allow an authenticated attacker to trigger malicious JavaScript code execution via crafted guest management setting.

An improper authorization vulnerability [CWE-285] in FortiOS's WEB UI component may allow an authenticated attacker belonging to the prof-admin profile to perform elevated actions.