PT-2026-55951 · Beyondtrust · Privileged Remote Access+1

Published 2026-07-06 · Updated 2026-07-06 · CVE-2026-40139

NVD

CVSS v4.0

9.2

Critical

Base vector

AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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.

Fix

Improper Authentication

Weakness Enumeration

CWE-287

Related Identifiers

CVE-2026-40139

Affected Products

Privileged Remote Access

Remote Support

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-40139 · Security Note
• https://beyondtrust.com/trust-center/security-advisories/bt26-03 · Note
• https://twitter.com/Daily_CyberSec/status/2074188677995987151 · Twitter Post