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BeyondTrust Remote Support (RS) < 25.3.2 Pre-Authentication RCE (BT26-02)

critical Nessus Plugin ID 298510

Synopsis

An application running on the remote web server is affected by a remote code execution vulnerability.

Description

The version of BeyondTrust Remote Support (RS) running on the remote host is prior to 25.3.2. It is, therefore, potentially affected by a pre-authentication remote code execution vulnerability:

 - By sending specially crafted requests, an unauthenticated remote attacker may be able to execute operating system commands in the context of the site user. (CVE-2026-1731)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to BeyondTrust Remote Support (RS) version 25.3.2 or later.

See Also

https://www.beyondtrust.com/trust-center/security-advisories/bt26-02

Plugin Details

Severity: Critical

ID: 298510

File Name: beyondtrust_remote_support_25_3_2.nasl

Version: 1.1

Type: remote

Family: CGI abuses

Published: 2/10/2026

Updated: 2/10/2026

Configuration: Enable paranoid mode

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Critical

Score: 9.0

CVSS v2

Risk Factor: Critical

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-1731

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v4

Risk Factor: Critical

Base Score: 9.9

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:H/SA:L

Vulnerability Information

CPE: cpe:/a:beyondtrust:remote_support

Required KB Items: installed_sw/BeyondTrust Remote Support, Settings/ParanoidReport

Patch Publication Date: 2/6/2026

Vulnerability Publication Date: 2/6/2026

Reference Information

CVE: CVE-2026-1731