- Cleartext Transmission of Sensitive Information vulnerability in Johnson Controls EasyIO NEO allows - Man In the Middle Attack.

published 2026-10-01 38 d ago modified 2026-10-02 37 d ago also EUVD-2026-91074

cvss: 7.3; version 4.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.1%; EPSS 0.1% chance of exploitation in 30 days, percentile 1%
public exploits: 0; none known

This issue affects EasyIO NEO: before 3.3b25.

Patch / fix

fixed in 1

Johnson Controls EasyIO NEO 3.3b25

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-26-274-05 updated 2026-10-01 cvss 5.4

Johnson Controls EasyIO Neo Series EC and CW Controllers

Johnson Controls EasyIO Neo Series CW Controllers V3.3b24, V3.3b25 Johnson Controls EasyIO Neo Series EC Controllers V3.3b62, V3.3b63
affected: mitigation “For more detailed mitigation instructions, please see Johnson Controls Product Security Advisory JCI-PSA-2026-30.https://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisories” johnsoncontrols.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 37 d ago (2026-10-02)

Exploit prediction

0.12% chance of exploitation in the next 30 days, higher than 1% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	4.0	7.3	CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:H/VI:L/VA:L/SC:H/SI:H/SA:H
CNA	4.0	7.3	CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:H/VI:L/VA:L/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

Johnson Controls EasyIO NEO

Classification

Weakness

CWE-319 Cleartext Transmission of Sensitive Information

References

johnsoncontrols.com /trust-center/cybersecurity/security-advisories

Sources

CVE List CVE-2026-64893
NVD CVE-2026-64893

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary