CVE-2026-102764
Published on October 15, 2026
Improper Origin Validation in Internal Messaging Components of BeyondTrust Remote Support
The vulnerability exists within internal components of BeyondTrust’s Remote Support product. The components did not adequately validate the origin of the messages it received. Under the right conditions, this could allow an attacker to perform file operations on the appliance.
Under Active Exploitation
This vulnerability is under active exploitation. In addition, this vulnerability has been known to be reliably automated.Known Exploited Vulnerability
This BeyondTrust Remote Support Authentication Bypass by Spoofing Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. BeyondTrust Remote Support contains an authentication bypass by spoofing vulnerability that could allow a remote attacker to perform file operations on the appliance.
The following remediation steps are recommended / required by October 19, 2026: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicab
Vulnerability Analysis
CVE-2026-102764 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. This vulnerability is known to be actively exploited by threat actors in an automatable fashion. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity and availability.
Weakness Type
Authentication Bypass by Spoofing
This attack-focused weakness is caused by improperly implemented authentication schemes that are subject to spoofing attacks.
Affected Versions
BeyondTrust Remote Support:- Before and including 26.2.3 is affected.