Quest KACE Systems Management Appliance (SMA) 13.0.x before 13.0.385, 13.1.x before 13.1.81, 13.2.x before 13.2.183, 14.0.x before 14.0.341 (Patch 5), and 14.1.x before 14.1.101 (Patch 4) contains a logic flaw in its two-factor authentication implementation that allows authenticated users to bypass TOTP-based 2FA requirements. The vulnerability exists in the 2FA validation process and can be exploited to gain elevated access.