CVE-2026-40138: Critical Pre-Authentication Vulnerability in BeyondTrust Remote Support and Privileged Remote Access
A critical pre-authentication vulnerability exists in the authentication subsystem of BeyondTrust Remote Support and Privileged Remote Access. Improper validation of authentication data may allow a network-positioned attacker to bypass access controls and gain unauthorized access to the appliance, including accounts with elevated privileges. Exploitation requires a specific authentication configuration to be enabled
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-40138?
CVE-2026-40138 is rated as critical with a risk score of 75.
How do I fix CVE-2026-40138?
To resolve CVE-2026-40138, update BeyondTrust Remote Support and Privileged Remote Access to the latest version provided by the vendor.
What systems are affected by CVE-2026-40138?
CVE-2026-40138 affects BeyondTrust Remote Support and Privileged Remote Access software.
What type of vulnerability is identified in CVE-2026-40138?
CVE-2026-40138 is a critical pre-authentication vulnerability in the authentication subsystem.
Can an attacker exploit CVE-2026-40138 remotely?
Yes, an attacker can exploit CVE-2026-40138 by being network-positioned to bypass access controls.