CVE-2026-40138

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

CVSS v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.beyondtrust.com/trust-center/security-advisories/bt26-03	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:beyondtrust:privileged_remote_access::::::::
	cpe:2.3:a:beyondtrust:remote_support::::::::

History

No history.

Information

Published : 2026-07-06 17:16

Updated : 2026-07-07 16:16

NVD link : CVE-2026-40138

Mitre link : CVE-2026-40138

CVE.ORG link : CVE-2026-40138

JSON object : View

Products Affected

beyondtrust

privileged_remote_access
remote_support

CWE

CWE-287

Improper Authentication

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