high8.1
CVE-2026-40138
A critical pre-authentication vulnerability exists in the authentication subsystem of BeyondTrust Remote Support and Privileged Remote Access.
Impact
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 products
| Vendor | Product | Affected versions |
|---|---|---|
| Beyondtrust | Privileged Remote Access | before 25.3.3 |
| Beyondtrust | Remote Support | before 25.3.3 |