CVE-2026-34493 | BDVDB-2026-381713 Detail

Johnson ControlsEasyIO FS32

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.

Impact#

CAPEC-150 Collect Data from Common Resource Locations

Weaknesses#

CWE-1191 On-Chip Debug Interface

References#

https://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisories

Exploit#

No public exploit known

History#

Version 12026-10-01Record published in the CVE List.
Version 22026-10-02Most recent update recorded in the CVE List.

Published

Published: 2026-10-01
Last modified: 2026-10-02

Vendor information

Vendor: Johnson Controls
Product: EasyIO FS32

All Johnson Controls vulnerabilities

Score

7.2 High

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 15.5.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Not classified

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
< 3.3b63
Fixed
3.3b63

Scoring System

CVSS v4.0

7.2 High

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

Metric breakdown
Attack Vector	Network
Attack Complexity	High
Attack Requirements	None
Privileges Required	None
User Interaction	Active
Vulnerable System Confidentiality	None
Vulnerable System Integrity	None
Vulnerable System Availability	High
Subsequent System Confidentiality	High
Subsequent System Integrity	High
Subsequent System Availability	High

CVSS v3.1

Not available

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).