ICSA-26-274-05: Johnson Controls EasyIO Neo Series EC and CW Controllers
CISA advisory · released 2026-10-01
Source record Collected from CISA's CSAF advisory feed
- Distribution label in the document: TLP:WHITE
- Revision 1, 2026-10-01 (final)
CISA's summary
Advisory Summary: Successful exploitation of this vulnerability could allow an attacker tointercept and read sensitive information, including credentials andsession data.
Products, as the advisory lists them
| Vendor | Product | Version |
|---|---|---|
| Johnson Controls | EasyIO Neo Series EC Controllers | V3.3b62 |
| Johnson Controls | EasyIO Neo Series EC Controllers | V3.3b63 |
| Johnson Controls | EasyIO Neo Series CW Controllers | V3.3b24 |
| Johnson Controls | EasyIO Neo Series CW Controllers | V3.3b25 |
DeSpy has not checked any unit, hardware revision or firmware.
Vulnerabilities in this advisory
- CVE-2026-64893 · CWE-319
Johnson Controls is aware of a vulnerability in EasyIO Neo which may allow an attacker to intercept and read sensitive information, including credentials and session data, transmitted in cleartext over the network. Successful exploitation could result in technical or operational impact. EasyIO Neo is a programmable building automation edge controller used to manage and automate HVAC, lighting, and energy systems in commercial buildings through a web-based interface.
Acknowledgments, as the advisory lists them
- Gabriele Gardois: reported this vulnerability to Johnson Controls
The advisory's legal notice
This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy & Use policy (https://www.cisa.gov/privacy-policy).
Sources
DeSpy's copy of this version is dated 2026-10-01.
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