CVE-2026-34494

Received Received - Intake

On-Chip Debug Interface Vulnerability in Johnson Controls Neo Series MVP2

Publication date: 2026-10-01

Last updated on: 2026-10-01

Assigner: Johnson Controls

Description

- On-Chip Debug Interface vulnerability in Johnson Controls Neo Series MVP2 allows Collect Data from Common Resource Locations. This issue affects Neo Series MVP2: before 3.3b63.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-10-01

Last Modified

2026-10-01

Generated

2026-10-02

AI Q&A

2026-10-02

EPSS Evaluated

N/A

NVD

CVE-2026-34494

Affected Vendors & Products

Vendor	Product	Version / Range
johnson_controls	neo_series_mvp2	to 3.3b63 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-1191	The chip does not implement or does not correctly perform access control to check whether users are authorized to access internal registers and test modes through the physical debug/test interface.

Attack-Flow Graph

Executive Summary

This vulnerability is an On-Chip Debug Interface issue in Johnson Controls Neo Series MVP2 devices. It allows attackers to collect data from common resource locations on affected systems. The flaw exists in versions before 3.3b63.

Detection Guidance

Detection methods for this vulnerability are not specified in the provided CVE details. Johnson Controls Neo Series MVP2 devices should be checked for firmware versions before 3.3b63. Contact productsecurity@jci.com for guidance on detection methods.

Impact Analysis

An attacker could exploit this to steal sensitive data from the device, potentially including system configurations or user information. Since the interface is accessible remotely, exploitation does not require physical access.

Compliance Impact

This vulnerability could lead to unauthorized data access, violating confidentiality requirements in GDPR and HIPAA. Organizations using affected devices may face compliance violations and potential fines if sensitive data is exposed.

Mitigation Strategies

Update Neo Series MVP2 firmware to version 3.3b63 or later to address the vulnerability.

Hi! I’m here to help you understand CVE-2026-34494. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70