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Vulnerability record · CVE-2026-102764 · published 15 October 2026

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.

9.3 CVSS 4.0 Critical CISA KEV since 16 Oct 2026 EPSS 0.60% · top 52.4% CWE-290 · Authentication bypass by spoofing
9.3CVSS 4.0 base score
0.60%EPSS exploitation probability, 30 days
YesIn CISA KEV, federal fix due in 1 days
1Affected product versions listed by NVD
4References
17 Oct 2026Last modified by NVD

Description

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.

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:

Exploitation in the wild

CISA added CVE-2026-102764 to the Known Exploited Vulnerabilities catalog on 16 October 2026 as "BeyondTrust Remote Support Authentication Bypass by Spoofing Vulnerability". Required action: 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. Federal deadline 19 October 2026.

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.9CVE-2026-1731BeyondTrust Remote Support and PRA pre-auth OS command injectionBeyondTrust Remote Support and certain older Privileged Remote Access versions contain an OS command injection flaw (CWE-78) reachable before authent…KEVEPSS 92%analysed9.8CVE-2024-12356BeyondTrust PRA and RS unauthenticated command injectionBeyondTrust Privileged Remote Access (PRA) and Remote Support (RS) contain a command injection flaw (CWE-77) that lets an unauthenticated attacker in…KEVEPSS 87%analysed7.2CVE-2024-12686BeyondTrust PRA and RS OS command injection by adminBeyondTrust Privileged Remote Access (PRA) and Remote Support (RS) contain an OS command injection flaw (CWE-78). An attacker who already holds admin…KEVEPSS 14%analysed9.8CVE-2023-4310Beyondtrust privileged remote access command injection vulnerabilityBeyondTrust Privileged Remote Access (PRA) and Remote Support (RS) versions 23.2.1 and 23.2.2 contain a command injection vulnerability which can be …EPSS 1.8%9.2CVE-2026-40139Beyondtrust privileged remote access improper authentication vulnerabilityA critical pre-authentication vulnerability exists in the authentication subsystem of BeyondTrust Remote Support. Improper processing of authenticati…EPSS 0.75%9.2CVE-2026-40138Beyondtrust privileged remote access improper authentication vulnerabilityA critical pre-authentication vulnerability exists in the authentication subsystem of BeyondTrust Remote Support and Privileged Remote Access. Improp…EPSS 0.46%8.7CVE-2026-40140Beyondtrust privileged remote access uncontrolled resource consumption vulnerabilityBeyondTrust Remote Support and Privileged Remote Access contain a high-severity pre-authentication vulnerability in the network communication subsyst…EPSS 0.65%8.6CVE-2025-5309Beyondtrust privileged remote access code injection vulnerabilityThe chat feature within Remote Support (RS) and Privileged Remote Access (PRA) is vulnerable to a Server-Side Template Injection vulnerability which …EPSS 0.95%

Source: NIST National Vulnerability Database (record CVE-2026-102764), CISA KEV, FIRST EPSS (scores of 2026-10-16). This page is refreshed as NVD updates the record.