Description
- On-Chip Debug Interface vulnerability in Johnson Controls EasyIO FS32 allows Collect Data from Common Resource Locations.

This issue affects EasyIO FS32: before 3.3b63.
Published: 2026-10-01
Score: 7.2 High
EPSS: < 1% Very Low
KEV: No
Impact: Confidential Data Exposure via On-Chip Debug Interface
Action: Patch Immediately
AI Analysis

Impact

Johnson Controls EasyIO FS32 contains a weakness in its On-Chip Debug Interface that allows an attacker to collect data from common resource locations. This flaw can be exploited to read sensitive data stored in the device’s internal memory or configuration files, resulting in a compromise of confidentiality. The vulnerability is classified as CWE-1191 and poses a moderate to high risk as it enables data exfiltration without requiring additional privileges. The only stated impact is the potential leakage of stored data; other consequences such as integrity or availability are not mentioned explicitly in the advisory.

Affected Systems

The flaw affects all EasyIO FS32 models running firmware versions prior to 3.3b63. Users with deployments of earlier firmware should verify their version and plan an upgrade to the patched release when available. No other vendors or products are listed as affected.

Risk and Exploitability

The CVSS score of 7.2 indicates a medium to high severity. The EPSS score is not provided, so the exploitation probability cannot be quantified. The vulnerability is not listed in the CISA KEV catalog. Based on the description, it is inferred that the attack vector involves access to the On-Chip Debug Interface, which could be local or remote if the interface is exposed over a network connection. No specific exploitation conditions are detailed beyond the requirement to use the debug interface to read data.

Generated by OpenCVE AI on October 1, 2026 at 22:49 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Upgrade the EasyIO FS32 firmware to version 3.3b63 or later.
  • If an immediate firmware update is not possible, disable the On‑Chip Debug Interface to block unauthorized data access.
  • Monitor system logs and network traffic for anomalous debug activity that may indicate exploitation attempts.

Generated by OpenCVE AI on October 1, 2026 at 22:49 UTC.

Tracking

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Advisories

No advisories yet.

History

Fri, 02 Oct 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 01 Oct 2026 23:15:00 +0000

Type Values Removed Values Added
Title ON‑Chip Debug Interface Vulnerability Exposing Common Resource Data

Thu, 01 Oct 2026 21:30:00 +0000

Type Values Removed Values Added
Description - On-Chip Debug Interface vulnerability in Johnson Controls EasyIO FS32 allows Collect Data from Common Resource Locations. This issue affects EasyIO FS32: before 3.3b63.
First Time appeared Johnson Controls
Johnson Controls easyio Fs32
Weaknesses CWE-1191
CPEs cpe:2.3:a:johnson_controls:easyio_fs32:*:*:*:*:*:*:*:*
Vendors & Products Johnson Controls
Johnson Controls easyio Fs32
References
Metrics cvssV4_0

{'score': 7.2, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:H/SI:H/SA:H'}


Subscriptions

Johnson Controls Easyio Fs32
cve-icon MITRE

Status: PUBLISHED

Assigner: jci

Published:

Updated: 2026-10-02T19:31:33.140Z

Reserved: 2026-03-30T08:25:11.763Z

Link: CVE-2026-34493

cve-icon Vulnrichment

Updated: 2026-10-02T19:31:19.739Z

cve-icon NVD

Status : Deferred

Published: 2026-10-01T22:17:01.720

Modified: 2026-10-02T20:17:02.190

Link: CVE-2026-34493

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-04T20:57:34Z

Weaknesses
  • CWE-1191

    On-Chip Debug and Test Interface With Improper Access Control