CVE-2026-27873

highpriority · track · 0OT risk · elevatedEPSS 0.001 · 0 %ileUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.09% (0th) EPSS
CVSS 7.7 · high
Is it mine?
2 products
Check your exposure
Who says so?
1 sources
cisa_csaf_ot

EPSS · scored 2026-10-27

- Use of Hard-coded Credentials vulnerability in Johnson Controls EasyIO FG allows - Pasword Spraying. This issue affects EasyIO FG: before 2.0b52.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

No vendor fix yet; a mitigation is available.

  • MitigationEasyIO FG firmwarecisa_csaf_ot

    Allow connections only from whitelisted IP addresses

02

cvss

Technical severity, 0–10. One row per scoring source.

7.7
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.3–7.7

v3.17.7highCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:H/A:Hsecondary · CISA US
v4.05.6mediumCVSS: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:Xsecondary · productsecurity@jci.com
v4.04.3mediumCVSS: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:U/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:Xsecondary · CVSS-BT (t0sche)
03

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-269USCWE-798US
05

affected products (2)

Products and version ranges known to be affected.

06

advisories (1)

Vendor and ecosystem advisories describing this.

  • ICSA-26-279-01Johnson Controls EasyIO FG2026-10-06icsa · cisa_csaf_otUS

    Successful exploitation of these vulnerabilities could allow an attacker to gain full unauthorized access to the device.

07

sources

Which sources assert this record, and when.

cisa_csaf_otNVDCVE.orgMITRE
published 2026-10-01modified 2026-10-02
08

references (1) nvd

External citations — patches, advisories, analysis.

scry

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