CVE-2026-40139CWE-287

Critical Pre-Authentication Vulnerability in BeyondTrust Remote Support and Privileged Remote Access

Critical · published July 6, 2026

CVSS v4.0
9.2
EPSS
1%
Percentile
54.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
9.2 · CRITICAL
Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00752 · 54.5th percentile
Weakness
CWE-287 · Improper Authentication
Published
2026-07-06T16:13Z
EPSS history
Timeline
  • 06 JUL 16:13Z
    Critical Pre-Authentication Vulnerability in BeyondTrust Remote Support and Privileged Remote Access
    cvelistv5