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.
https://www.securityweek.com/chinese-apt-exploited-beyondtrust-vulnerability-as-zero-day/
https://www.infosecurity-magazine.com/news/china-actor-beyondtrust-flaw-google/
https://therecord.media/beyond-trust-cyberattack-china
https://cyberscoop.com/china-espionage-attacks-beyondtrust-zero-day-armory-castle/
https://cloud.google.com/blog/topics/threat-intelligence/armory-castle-exploits-beyondtrust/
https://github.com/completetech-security/beyondtrust-remote-support-cve-2026-102764-check
https://github.com/CompleTetech-Security/beyondtrust-remote-support-cve-2026-102764-check
https://github.com/maxprog-svg/CVE-2026-102764
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-102764
https://www.beyondtrust.com/blog/entry/bt26-05
https://nvd.nist.gov/vuln/detail/CVE-2026-102764
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-102427
https://beyondtrustcorp.service-now.com/csm?id=csm_kb_article&sysparm_article=KB0024066
Published: 2026-10-15
Updated: 2026-10-17
Known Exploited Vulnerability (KEV)
Base Score: 10
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
Severity: Critical
Base Score: 9.8
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity: Critical
Base Score: 9.3
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Severity: Critical
EPSS: 0.77994
Tenable Research has classified this CVE under the following Vulnerability Watch classification, which includes active and historical (inactive) classifications. You can learn more about these classifications on our blog.
Vulnerability of Interest