{"id":"CVE-2026-102764","published":"2026-10-15T21:17:00Z","modified":"2026-10-17T04:16:47Z","title":"BeyondTrust Remote Support Authentication Bypass by Spoofing Vulnerability","vendor":"BeyondTrust","product":"Remote Support","tier":"core","eol":null,"description":{"text":"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.","provenance":"source","from":"NVD"},"summary":{"text":"The flaw is an authentication bypass by spoofing in internal components of BeyondTrust's Remote Support product, where message origin is not adequately validated. An attacker who can reach the affected components over the network, without authentication or user interaction, could abuse this to perform file operations on the appliance, though the specific conditions required for this to succeed are not detailed in the available information.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-29T07:10:57Z"},"cvss":{"score":9.8,"severity":"CRITICAL","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.1895,"percentile":0.97293,"date":"2026-10-29","provenance":"source"},"kev":{"dateAdded":"2026-10-16","dueDate":"2026-10-19","ransomware":false,"requiredAction":"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 applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.","notes":"https://www.beyondtrust.com/trust-center/security-advisories/bt26-05 ; ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-102764","provenance":"source"},"vulncheckKev":{"dateAdded":"2026-10-15","exploitedFirstSeen":"2026-10-15","ransomware":false,"evidence":[{"url":"https://cloud.google.com/blog/topics/threat-intelligence/armory-castle-exploits-beyondtrust/","date":"2026-10-15"},{"url":"https://www.beyondtrust.com/blog/entry/bt26-05","date":"2026-10-15"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2026-10-16"}],"evidenceTotal":3,"provenance":"source"},"exploited":true,"otx":{"pulseCount":30,"pulses":[{"name":"Actively_Exploited_Kev | Oct 30, 2026","url":"https://otx.alienvault.com/pulse/6ae35d889ea92b4ce19c2680","created":"2026-10-29"},{"name":"Actively_Exploited_Kev | Oct 29, 2026","url":"https://otx.alienvault.com/pulse/6ae20c1db17e7057ae7d9ad1","created":"2026-10-28"},{"name":"Actively_Exploited_Kev | Oct 28, 2026","url":"https://otx.alienvault.com/pulse/6ae0ba7e0e2a97ff7b218819","created":"2026-10-27"},{"name":"Actively_Exploited_Kev | Oct 27, 2026","url":"https://otx.alienvault.com/pulse/6adf68b85c3e852f3c111d18","created":"2026-10-26"},{"name":"Known_Cve | Oct 24, 2026 | Part 1/3","url":"https://otx.alienvault.com/pulse/6adb7414397c3ad4799aa4ce","created":"2026-10-23"},{"name":"Actively_Exploited_Kev | Oct 24, 2026","url":"https://otx.alienvault.com/pulse/6adb740e397c3ad4799aa4cd","created":"2026-10-23"},{"name":"Known_Cve | Oct 23, 2026 | Part 1/3","url":"https://otx.alienvault.com/pulse/6ada23770d71749da2321a29","created":"2026-10-22"},{"name":"Actively_Exploited_Kev | Oct 23, 2026","url":"https://otx.alienvault.com/pulse/6ada236fcfba2dfa730ea482","created":"2026-10-22"},{"name":"ARMORY CASTLE Exploits BeyondTrust","url":"https://otx.alienvault.com/pulse/6ad9e67ca1c7d1ceba4d86e7","created":"2026-10-22"},{"name":"CVE-2026-102764: Critical BeyondTrust Remote Support Authentication Bypass Exploited in the Wild","url":"https://otx.alienvault.com/pulse/6ad9e59054fad0d59ecf53a7","created":"2026-10-22"}],"provenance":"machine"},"cwes":[{"id":"CWE-290","name":"Authentication Bypass by Spoofing"}],"references":[{"url":"https://beyondtrustcorp.service-now.com/csm?id=csm_kb_article&sysparm_article=KB0024066","tags":["Permissions Required"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-102764","tags":["US Government Resource"]},{"url":"https://www.beyondtrust.com/blog/entry/bt26-05","tags":["Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-102764","tags":["US Government Resource"]}],"techniques":[{"id":"T1190","name":"Exploit Public-Facing Application","tactics":["initial-access"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: unvalidated message origin enables remote exploitation","mappingType":"exploitation_technique","evidence":[{"from":"description","quote":"did not adequately validate the origin of the messages it received","start":108,"end":174}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"},{"id":"T1005","name":"Data from Local System","tactics":["collection"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: file operations on appliance enable file access","mappingType":"primary_impact","evidence":[{"from":"description","quote":"could allow an attacker to perform file operations on the appliance","start":209,"end":276}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2026-102427","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-102427","exploited":true,"exploitedSince":"2026-10-16","provenance":"source"},"exploits":[],"exploitSources":{"pocGithub":{"count":3,"skipped":0,"earliest":"2026-10-16","earliestUrl":"https://github.com/Worthes/CVE-2026-102764-Proof-of-concept","repos":[{"name":"Worthes/CVE-2026-102764-Proof-of-concept","url":"https://github.com/Worthes/CVE-2026-102764-Proof-of-concept","stars":3,"created":"2026-10-16"},{"name":"maxprog-svg/CVE-2026-102764","url":"https://github.com/maxprog-svg/CVE-2026-102764","stars":0,"created":"2026-10-21"},{"name":"CompleteTech-Security/beyondtrust-remote-support-cve-2026-102764-check","url":"https://github.com/CompleteTech-Security/beyondtrust-remote-support-cve-2026-102764-check","stars":0,"created":"2026-10-23"}]},"first":{"date":"2026-10-16","source":"PoC-in-GitHub","url":"https://github.com/Worthes/CVE-2026-102764-Proof-of-concept"},"provenance":"source"},"exploitRefs":[],"flow":[{"stage":"exploitation","techniques":["T1190"],"provenance":"ai"},{"stage":"primary","techniques":["T1005"],"provenance":"ai"}],"timeline":[{"date":"2026-10-15","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-102764","provenance":"source"},{"date":"2026-10-15","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://cloud.google.com/blog/topics/threat-intelligence/armory-castle-exploits-beyondtrust/","provenance":"source"},{"date":"2026-10-16","kind":"exploit-public","label":"First public exploit: PoC-in-GitHub","url":"https://github.com/Worthes/CVE-2026-102764-Proof-of-concept","provenance":"source"},{"date":"2026-10-16","kind":"kev","label":"Added to CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","provenance":"source"},{"date":"2026-10-16","kind":"euvd-exploited","label":"ENISA EUVD: exploited","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-102427","provenance":"source"}],"speed":{"daysToPublicExploit":1,"firstExploitFrom":"PoC-in-GitHub","daysToKev":1},"priority":{"score":79.3,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in CISA KEV and VulnCheck KEV"},{"name":"Recent KEV listing","points":10.0,"detail":"added 15 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":19.46,"detail":"percentile 0.9729"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":5.0,"detail":"3 PoC-in-GitHub repos"},{"name":"Mentioned in OTX pulses","points":3.0,"detail":"30 pulses"},{"name":"CVSS severity","points":6.86,"detail":"base score 9.8"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}