CVE-2026-102764
BeyondTrust Remote Support Authentication Bypass by Spoofing Vulnerability
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.
Exploitation status
CISA Known Exploited Vulnerabilities
Listed by CISA on 16 October 2026. US federal agencies were required to remediate it by 19 October 2026.
EPSS — exploitation probability
FIRST puts the probability of exploitation activity in the next 30 days at 1.2%, which is higher than 67.5% of all scored vulnerabilities. EPSS is a forecast of activity, not a measure of severity, and it is rescored daily.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Frequently asked questions
Is CVE-2026-102764 being exploited by ransomware groups?
No ransomware group in this database is currently recorded as exploiting CVE-2026-102764.
What does CVE-2026-102764 affect?
CVE-2026-102764 affects 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.
How severe is CVE-2026-102764?
CVE-2026-102764 is rated CRITICAL with a CVSS base score of 9.8. EPSS puts the probability of exploitation in the next 30 days at 1.2%, higher than 67.5% of all scored vulnerabilities. It is listed in the CISA Known Exploited Vulnerabilities catalog, with a federal remediation deadline of 19 October 2026.
How should organisations respond to CVE-2026-102764?
Apply the vendor patch for BeyondTrust Remote Support as the first priority, and treat any internet-facing instance as the most urgent. Because this vulnerability is associated with ransomware activity, also review whether the affected systems were reachable before patching, rather than assuming that patching alone closes the incident.