Fortinet has fixed multiple severe vulnerabilities impacting its products. The vulnerabilities range from Remote Code Execution (RCE) to SQL Injection, to Denial of Service (DoS) and impact the FortiProxy SSL VPN and FortiWeb Web Application Firewall (WAF) products. Fortinet customers are therefore advised to upgrade to fixed versions of their products as soon as possible to protect against such critical vulnerabilities. Some of these vulnerabilities had been previously reported in other Fortinet products but were fixed only recently in Fortiproxy SSL VPN versions shown below.
Source: https://www.bleepingcomputer.com/news/security/fortinet-fixes-critical-vulnerabilities-in-ssl-vpn-and-web-firewall/