- Use of Hard-coded Credentials vulnerability in Johnson Controls EasyIO FG allows - Pasword Spraying.

published 2026-10-01 38 d ago modified 2026-10-02 37 d ago also EUVD-2026-91075

cvss: 5.6; 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 0%
public exploits: 0; none known

This issue affects EasyIO FG: before 2.0b52.

Patch / fix

fixed in 1

Johnson Controls EasyIO FG 2.0b52

Vendor advisories

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

cisa ICSA-26-279-01 updated 2026-10-06 cvss 7.7

Johnson Controls EasyIO FG

Johnson Controls EasyIO FG firmware <=2.0b52
affected: mitigation “Deploy devices only within isolated BAS/OT networks” 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: total
Assessed: 37 d ago (2026-10-02)

Exploit prediction

0.09% chance of exploitation in the next 30 days, higher than 0% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	4.0	5.6	CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:L/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
CNA	4.0	5.6	CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:L/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/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 FG

Classification

Weakness

CWE-798 Use of Hard-coded Credentials

References

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

Sources

CVE List CVE-2026-27873
NVD CVE-2026-27873

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