CVE-2026-40138 Critical Pre-Authentication Vulnerability in BeyondTrust Remote Support and Privileged Remote Access

Critical 9.2 Published 6 Jul 2026 Updated 7 Jul 2026

Network attackers can bypass authentication to gain unauthorized access with elevated privileges on BeyondTrust Remote Support and Privileged Remote Access appliances.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-40138?

CVE-2026-40138 is a critical authentication bypass vulnerability in BeyondTrust Privileged Remote Access, published on 6 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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

Weakness: CWE-287

Which versions are affected by CVE-2026-40138?

It affects 2 products.

Products include Beyondtrust Privileged Remote Access, Beyondtrust Remote Support.

How do I fix CVE-2026-40138?

No fix has been published for CVE-2026-40138 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2026-40138 being exploited?

There is no known exploitation of CVE-2026-40138 in the wild and no public exploit code.

Sources

Also known as GHSA-hcrc-2pw3-4v88.