Deep Dive CVE-2026-40138: Pre-Authentication Authentication Bypass in BeyondTrust Remote Access Solutions
Introduction In the modern corporate landscape, privileged access and remote control solutions form the backbone of IT administration and technical support infrastructure. However, because these systems inherently possess elevated rights over entire enterprise networks, they represent highly attractive targets for sophisticated threat actors. In July 2026, a critical security vulnerability designated as CVE-2026-40138 was publicly disclosed, impacting BeyondTrust’s flagship remote access software lines. Classified as