CVE-2026-40138: BeyondTrust Remote Support and PRA authentication bypass

CVE-2026-40138 · Severity: info · CVSS 9.2 · Published 2026-07-06

BeyondTrust Remote Support and Privileged Remote Access solutions are affected by a critical security flaw in how they verify user identities. A remote attacker could bypass security controls to gain full access to the management appliance, potentially taking over administrative accounts. This could lead to a total compromise of the remote access infrastructure used to manage sensitive corporate systems.

Technologies: BeyondTrust Privileged Remote Access, BeyondTrust Remote Support. Vendors: BeyondTrust.

Quick answers

Is CVE-2026-40138 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-40138 being exploited in the wild.
How severe is CVE-2026-40138?
Informational severity, with a CVSS score of 9.2, published 6 July 2026.
Which products and versions are affected?
BeyondTrust Privileged Remote Access < 25.3.3, < 26.2.1; BeyondTrust Remote Support < 25.3.3, < 26.2.1.
Is there a fix for CVE-2026-40138?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-40138 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-40138?
Check whether you run BeyondTrust Privileged Remote Access or BeyondTrust Remote Support at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A critical improper authentication vulnerability (CWE-287) exists in the authentication subsystem of BeyondTrust Remote Support and Privileged Remote Access. The flaw stems from improper validation of authentication data, which can be exploited by a network-positioned attacker to bypass access controls without prior credentials. Successful exploitation allows for unauthorized access to the appliance, including accounts with elevated privileges. The vulnerability requires a specific, though unspecified, authentication configuration to be enabled. BeyondTrust has released patches in versions 25.3.3 and 26.2.1 to address this issue.

Affected products

  • BeyondTrust Remote Support < 25.3.3, < 26.2.1
  • BeyondTrust Privileged Remote Access < 25.3.3, < 26.2.1

Timeline

  • 2026-07-06: disclosed
  • 2026-07-06: advisory

References

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