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Known Exploited Vulnerability
9.8
CRITICAL CVSS 3.1
CVE-2026-102764
BeyondTrust Remote Support Authentication Bypass by Spoofing Vulnerability - [Actively Exploited]
Overview
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.

Details
INFO

Published Date :

Oct. 15, 2026, 9:17 p.m.

Last Modified :

Oct. 17, 2026, 4:16 a.m.

Remotely Exploit :

Yes !

Source :

13061848-ea10-403d-bd75-c83a022c2891
CISA Notification
CISA KEV (Known Exploited Vulnerabilities)

For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.

Description :

BeyondTrust Remote Support contains an authentication bypass by spoofing vulnerability that could allow a remote attacker to perform file operations on the appliance.

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.

Known Ransomware Campaign Use:

Unknown

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

Impact
Affected Products

The following products are affected by CVE-2026-102764 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Beyondtrust remote_support
: Total Affected Vendor : 1 | Products : 1
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 134c704f-9b21-4f2e-91b3-4a467353bcc0
CVSS 3.1 CRITICAL [email protected]
CVSS 4.0 CRITICAL 13061848-ea10-403d-bd75-c83a022c2891
CVSS 4.0 CRITICAL 13061848-ea10-403d-bd75-c83a022c2891
Solution
Validate message origins to prevent unauthorized file operations.
  • Update BeyondTrust Remote Support to the latest version.
  • Apply security patches provided by the vendor.
  • Review and validate all incoming message sources.
  • Restrict access to internal components.
References
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-102764.

URL Resource
https://beyondtrustcorp.service-now.com/csm?id=csm_kb_article&sysparm_article=KB0024066 Permissions Required
https://nvd.nist.gov/vuln/detail/CVE-2026-102764 US Government Resource
https://www.beyondtrust.com/blog/entry/bt26-05 Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-102764 US Government Resource
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-102764 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-102764 weaknesses.

CAPEC-21: Exploitation of Trusted Identifiers Exploitation of Trusted Identifiers CAPEC-22: Exploiting Trust in Client Exploiting Trust in Client CAPEC-59: Session Credential Falsification through Prediction Session Credential Falsification through Prediction CAPEC-60: Reusing Session IDs (aka Session Replay) Reusing Session IDs (aka Session Replay) CAPEC-94: Adversary in the Middle (AiTM) Adversary in the Middle (AiTM) CAPEC-459: Creating a Rogue Certification Authority Certificate Creating a Rogue Certification Authority Certificate CAPEC-461: Web Services API Signature Forgery Leveraging Hash Function Extension Weakness Web Services API Signature Forgery Leveraging Hash Function Extension Weakness CAPEC-473: Signature Spoof Signature Spoof CAPEC-476: Signature Spoofing by Misrepresentation Signature Spoofing by Misrepresentation CAPEC-667: Bluetooth Impersonation AttackS (BIAS) Bluetooth Impersonation AttackS (BIAS)

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-102764 vulnerability anywhere in the article.

  • The Hacker News
China-Linked Hackers Exploited VMware ESX Zero-Day to Reduce Audit Trail Visibility

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Wednesday added a security flaw impacting Broadcom VMware ESX to its Known Exploited Vulnerabilities (KEV) catalog, after CrowdStrik ... Read more

Published Date: Oct 29, 2026 (1 week, 1 day ago)
  • TheCyberThrone
F5 Addresses Multiple NGINX Vulnerabilities in October Security Update

F5 and the NGINX project released security fixes on October 14, 2026, addressing five vulnerabilities in NGINX Open Source and NGINX Plus. The issues affect memory handling, HTTP/3 request processing ... Read more

Published Date: Oct 17, 2026 (2 weeks, 6 days ago)
  • Dark Reading
BeyondTrust Remote Support Zero-Day Continues Trend of Exploited Edge Bugs

5 Min ReadSource: ZU_09 via Getty ImagesA week chock full of new high-severity and actively exploited edge vulnerabilities continues with a Chinese cyberattack built around a critical flaw in BeyondTr ... Read more

Published Date: Oct 16, 2026 (3 weeks ago)
  • TheCyberThrone
CVE-2026-102764: BeyondTrust Remote Support Vulnerability Exploited in the Wild

Remote support tools help IT teams access and troubleshoot systems from anywhere. But when one of these tools is compromised, the impact can extend far beyond the platform itself, particularly when it ... Read more

Published Date: Oct 16, 2026 (3 weeks ago)
  • security.nl
Kritiek lek in BeyondTrust Remote Support sinds augustus misbruikt bij aanvallen

Een kritieke kwetsbaarheid in BeyondTrust Remote Support is zeker sinds 29 augustus misbruikt bij aanvallen, aldus BeyondTrust. Op 8 oktober kwam het bedrijf met een beveiligingsupdate. Het bestaan va ... Read more

Published Date: Oct 16, 2026 (3 weeks ago)

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2026-102764 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Oct. 17, 2026

    Action Type Old Value New Value
    Removed SSVC {'id': 'CVE-2026-102764', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'active'}, {'automatable': 'yes'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-10-16T17:50:04.760178Z'}
    Added SSVC {'id': 'CVE-2026-102764', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'active'}, {'automatable': 'yes'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-10-16T00:00:00+00:00'}
  • Initial Analysis by [email protected]

    Oct. 16, 2026

    Action Type Old Value New Value
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Added CPE Configuration OR *cpe:2.3:a:beyondtrust:remote_support:*:*:*:*:*:*:*:* versions up to (including) 26.2.3
    Added Reference Type BeyondTrust: https://beyondtrustcorp.service-now.com/csm?id=csm_kb_article&sysparm_article=KB0024066 Types: Permissions Required
    Added Reference Type BeyondTrust: https://nvd.nist.gov/vuln/detail/CVE-2026-102764 Types: US Government Resource
    Added Reference Type BeyondTrust: https://www.beyondtrust.com/blog/entry/bt26-05 Types: Vendor Advisory
    Added Reference Type CISA-ADP: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-102764 Types: US Government Resource
  • CVE CISA KEV Update by 9119a7d8-5eab-497f-8521-727c672e3725

    Oct. 16, 2026

    Action Type Old Value New Value
    Added Date Added 2026-10-16
    Added Due Date 2026-10-16
    Added Required Action 2026-10-16
    Added Vulnerability Name 2026-10-16
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Oct. 16, 2026

    Action Type Old Value New Value
    Added Reference https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-102764
    Added SSVC {'id': 'CVE-2026-102764', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'active'}, {'automatable': 'yes'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-10-16T17:50:04.760178Z'}
  • New CVE Received by 13061848-ea10-403d-bd75-c83a022c2891

    Oct. 15, 2026

    Action Type Old Value New Value
    Added 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.
    Added CVSS V4.0 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
    Added CWE CWE-290
    Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/102xxx/CVE-2026-102764.json">CVE-2026-102764</a>
    Added Reference https://beyondtrustcorp.service-now.com/csm?id=csm_kb_article&sysparm_article=KB0024066
    Added Reference https://nvd.nist.gov/vuln/detail/CVE-2026-102764
    Added Reference https://www.beyondtrust.com/blog/entry/bt26-05
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CVSS
Vulnerability Scoring Details
Base CVSS Score: 9.3
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability
Base CVSS Score: 9.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact