CVE-2026-84858

Published Sep 16, 2026

Last updated 2 months ago

CVSS high 8.8
Scada

Overview

Description
ScadaLTS 2.8.1-release-candidate build 0 is affected by an Authenticated Remote Code Execution via Scripting Sandbox Bypass The DWR "DataSourceEditDwr" class exposes the "validateScript" method that compiles and executes attacker-supplied JavaScript via the Rhino scripting engine. There are no authorization checks on this method and so it is possible for an attacker with access to a low privilege user to abuse this flaw by leveraging the DWR routing bypass.
Source
vulnreport@tenable.com
NVD status
Deferred

Risk scores

CVSS 3.1

Type
Secondary
Base score
8.8
Impact score
5.9
Exploitability score
2.8
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Severity
HIGH

Weaknesses

134c704f-9b21-4f2e-91b3-4a467353bcc0
CWE-94

Social media

Hype score
Not currently trending

  1. 🚨 HIGH: CVE-2026-84858 (CVSS 8.8) ScadaLTS 2.8.1-RC vulnerable to authenticated RCE via scripting sandbox bypass. Low-privilege users can execute arbitrary JavaScript through exposed DWR method. #CVE #Vulnerability #PatchNow #ThreatIntel #DFIR https://t.co/UoVw1n6Wmf

    @DFIR_Lab

    30 Sept 2026

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References

Sources include official advisories and independent security research.