CVE-2026-40139

CRITICAL9.8

Published 2026-07-06 · Updated 2026-07-07 · Source 13061848-ea10-403d-bd75-c83a022c2891

Description

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.

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE-287

References

https://www.beyondtrust.com/trust-center/security-advisories/bt26-03

View on NVD

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