vulnerability ABB Busch-Welcome 2 Wire Door Opener Actuator A vulnerability has been identified in ABB Busch-Welcome 2 Wire Door Opener Actuators, specifically due to a default compatibility mode that allows for authentication bypass. This could enable an attacker to gain unauthorized physical access to buildings where the device is installed. ABB is recommending immediate miti… CISA Advisories · May 28, 2026 High CVE-2025-7705WOdoor lockphysical accessauthentication