Fortinet Warns of FortiOS SSL VPN Vulnerability Allowing Two-Factor Authentication Bypass
551/68 Friday, December 26, 2025 Fortinet has issued a security warning after detecting active exploitation of CVE-2020-12812 affecting FortiOS SSL VPN, a vulnerability that allows attackers to bypass two-factor authentication (2FA) by simply altering the letter casing of the username during login. For example, logging in as “Admin” instead of “admin” may allow access without […]
