Sensitive-data interception via cleartext network transmission
Published Oct 1, 2026 · Updated Oct 1, 2026
Cleartext transmission in Johnson Controls EasyIO Neo Series before 3.3b25 allows man-in-the-middle attackers to read sensitive network data. The controller transmits sensitive information without protecting it in transit; Johnson Controls has not identified the affected service, message type, or code path. Exploitation requires access to the relevant traffic path, and the published assessment assumes low privileges and passive user interaction; the specific exposed data remains undisclosed.
Summary
What happened
Cleartext transmission in Johnson Controls EasyIO Neo Series before 3.3b25 allows man-in-the-middle attackers to read sensitive network data. The controller transmits sensitive information without protecting it in transit; Johnson Controls has not identified the affected service, message type, or code path. Exploitation requires access to the relevant traffic path, and the published assessment assumes low privileges and passive user interaction; the specific exposed data remains undisclosed.
The record
- CVE
- CVE-2026-64893
- Published
- Oct 1, 2026
- Updated
- Oct 1, 2026
- Vendor
- Johnson Controls
- Product
- EasyIO Neo Series
- Classifications
- CWE-319, CAPEC-94, T1557
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Oct 1, 2026CVE publishedPublication date reported by the CVE source.
- Oct 1, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <3.3b25
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Activity data is delayed. The latest report is Sep 28, 2026.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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