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9.2

BeyondTrust Remote Support: Unauthorized Access to Elevated Accounts

CVE-2026-40138 · published 4 months ago
Summary

A security flaw in BeyondTrust Remote Support and Privileged Remote Access allows an attacker to bypass access controls and gain unauthorized access to accounts with elevated privileges. This can happen if an attacker is positioned on the network and the specific authentication configuration is enabled. To protect your system, update BeyondTrust Remote Support and Privileged Remote Access to the latest version.

What to do
  • Update beyondtrust privileged_remote_access to version 25.3.3 or later.
  • Update beyondtrust remote_support to version 25.3.3 or later.
Affected software
VendorProductAffected versions
beyondtrust remote support < 26.2.1
< 26.1.1
beyondtrust privileged remote access < 26.2.1
< 26.1.1
beyondtrust privileged_remote_access < 25.3.3
cpe:2.3:a:beyondtrust:privileged_remote_access:*:*:*:*:*:*:*:*
beyondtrust remote_support < 25.3.3
cpe:2.3:a:beyondtrust:remote_support:*:*:*:*:*:*:*:*
Original advisory text
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...
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
References
Fix within
Internet-facing 14 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker full control
Severity
9.2 Critical
Exploitation
<1% chance of attack within 30 days
Type
CWE-287Improper Authentication
Timeline
Published6 Jul 2026
Updated4 Nov 2026
First seen6 Jul 2026
Sources
CVE-2026-40138 · NVD
CVE-2026-40138 · MITRE
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