CVE-2026-40139: BeyondTrust Privileged Remote Access

Critical severity, CVSS 9.8. EPSS: 0.8% chance of exploitation in the next 30 days.

A critical pre-authentication vulnerability exists in the authentication subsystem of BeyondTrust Remote Support. Improper processing of authentication requests may allow an unauthenticated remote 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

• BeyondTrust Privileged Remote Access: before 25.3.3 (fixed in 25.3.3)
• BeyondTrust Remote Support: before 25.3.3 (fixed in 25.3.3)

Published 2026-07-06. Last modified 2026-07-07.