9.8

CVE-2026-102764

BeyondTrust Remote Support Authentication Bypass by Spoofing Vulnerability

CVSS: 9.8v3.1CriticalKEVAnalyzed
Published 15-10-2026Last modified 16-10-2026
Open JSON

Vulnerability summary

Overall risk
85/100
0100
Critical · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
0.60%
0%100%
Low · Change unavailable
KEVListedCISA
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 15-10-2026
    PublishedVulnerability first disclosed.
  2. 16-10-2026
    Added to CISA KEVBeyondTrust Remote Support Authentication Bypass by Spoofing Vulnerability
  3. 16-10-2026
    Last modifiedVulnerability information updated.
  4. 19-10-2026
    CISA remediation dueApply mitigations per vendor instructions.

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 metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.60%

Chance of exploitation in the next 30 days

Percentile

48%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

16-10-202616-10-2026
EPSS score
0.60%

Known exploited

Compare KEV catalogs
CISA KEVListed
Added
16-10-2026
Federal due date
19-10-2026

CISA 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. www.beyondtrust.com/trust-center/security-advisories/bt26-05 nvd.nist.gov/vuln/detail/CVE-2026-102764

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Beyondtrust1 product
  • remote support≤ 26.2.3

1 vendor · 1 product

References

4 links