CVE-2026-64892 in Easy IO Neo
Summary
by MITRE • 10/02/2026
- Exposure of Sensitive Information vulnerability in Johnson Controls Easy IO Neo allows Collect Data from Common Resource Locations.
This issue affects Easy IO Neo: before 3.3b63.
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Analysis
by VulDB Data Team • 10/02/2026
The identified vulnerability represents a classic instance of improper access control leading to the exposure of sensitive information within the Johnson Controls Easy IO Neo software ecosystem, specifically in versions prior to 3.3b63. This flaw allows an attacker or unauthorized process to collect data from common resource locations on the host system where the application is deployed. In industrial automation and building management contexts, such as those managed by Johnson Controls systems, these common resource locations often contain configuration files, logs, cached credentials, or temporary data that are not adequately protected against read access by lower-privileged entities. The vulnerability stems from a failure to enforce strict file system permissions or sandboxing mechanisms, thereby permitting processes with limited privileges to traverse directories and extract contents intended for administrative use only.
From a technical perspective, this issue aligns directly with CWE-200: Exposure of Sensitive Information to an Unauthorized Actor. The root cause typically involves the application writing sensitive data into standard temporary directories or shared configuration paths without applying restrictive operating system-level permissions such as read-write-execute bits restricted solely to the owner and group. Furthermore, it may involve a lack of input validation regarding file path traversal when accessing these resources, allowing relative paths to escape intended boundaries. The operational impact is significant because the exposed data can serve as reconnaissance material for subsequent attacks. For instance, extracted configuration files might reveal network topology details, IP addresses of critical controllers, or default credentials used by the Easy IO Neo service itself. This information significantly lowers the barrier for an attacker aiming to compromise the integrity and availability of the building automation system.
In terms of threat modeling and industry frameworks, this vulnerability maps to MITRE ATT&CK technique T1083: File and Directory Discovery. An adversary leveraging this flaw would be performing initial reconnaissance to map out the target environment before attempting more intrusive actions such as credential dumping or remote code execution. The ability to read from common resource locations is a foundational step in building a comprehensive picture of the system's state, which can then be used to craft targeted exploits against specific services running on the same host. This makes the vulnerability particularly dangerous in converged IT/OT environments where network segmentation might not fully isolate industrial control systems from general corporate networks or external-facing interfaces.
Mitigation strategies must focus on both immediate remediation and long-term architectural improvements. The primary solution is to upgrade Johnson Controls Easy IO Neo to version 3.3b63 or later, as this release explicitly addresses the access control flaws related to resource location permissions. In addition to upgrading, administrators should implement strict file system hardening by ensuring that all sensitive configuration files and temporary directories are set with restrictive permissions (e.g., chmod 700 for critical paths) so that only the specific service account running Easy IO Neo can read or write to them. It is also advisable to review application logs for any signs of unauthorized access attempts during the window where the vulnerability was present, as this could indicate active exploitation by malicious actors seeking to gather intelligence on the network infrastructure.