---
id: CVE-2026-34498
title: >-
  Improper input validation vulnerability in Johnson Controls Illustra Standard
  - L4L China on Windows allows OS Command Injection.


  This issue affects Illustra Standard - L4L China: before 6.0.0.66394.
summary: >-
  Improper input validation vulnerability in Johnson Controls Illustra Standard
  - L4L China on Windows allows OS Command Injection.


  This issue affects Illustra Standard - L4L China: before 6.0.0.66394.
severity: medium
cvss: 5.1
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:H/SA:L'
cwe:
  - CWE-20
vendor: Johnson Controls
product: Illustra Standard - L4L China
affected:
  - illustra_standard_-_l4l_china < 6.0.0.66394
published: '2026-10-06'
updated: '2026-10-06'
sourceUpdated: '2026-10-06T15:15:48.310'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-34498'
references:
  - url: >-
      https://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisories
    label: productsecurity@jci.com
tags:
  - nvd
  - cve.org
cvssSource: cna
ingestedAt: '2026-10-06T14:00:19.137Z'
---

## Overview

Improper input validation vulnerability in Johnson Controls Illustra Standard - L4L China on Windows allows OS Command Injection.

This issue affects Illustra Standard - L4L China: before 6.0.0.66394.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.