Improper Origin Validation in Internal Messaging Components of BeyondTrust Remote Support

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-102764
StatePUBLISHED
AssignerBT
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-15 21:17:00 UTC
Updated2026-10-15 21:17:00 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v4.0 9.3 CRITICAL from 13061848-ea10-403d-bd75-c83a022c2891

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Problem Types: CWE-290 | CWE-290 CWE-290 Authentication bypass by spoofing

VersionSourceTypeScoreSeverityVector
4.013061848-ea10-403d-bd75-c83a022c2891Secondary9.3CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/C...
4.0CNACVSS9.3CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Confidentiality
High
Integrity
High
Availability
High
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA BeyondTrust Remote Support affected 26.2.3 custom Not specified

References

ReferenceSourceLinkTags
nvd.nist.gov/vuln/detail/CVE-2026-102764 13061848-ea10-403d-bd75-c83a022c2891 nvd.nist.gov
beyondtrustcorp.service-now.com/csm 13061848-ea10-403d-bd75-c83a022c2891 beyondtrustcorp.service-now.com
www.beyondtrust.com/blog/entry/bt26-05 13061848-ea10-403d-bd75-c83a022c2891 www.beyondtrust.com
CVE Program record CVE.ORG www.cve.org canonical

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