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TI-2018-04717 Aliases CVE-2018-6402GHSA-j5q8-22j2-m58f

Ecobee Ecobee4 4.2.0.171 devices can be forced to deauthenticate and connect to an…

Priority LOW 32CWE-327Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Information disclosure
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-327.

Summary

Ecobee Ecobee4 4.2.0.171 devices can be forced to deauthenticate and connect to an unencrypted Wi-Fi network with the same SSID, even if the device settings specify use of encryption such as WPA2, as long as the competing network has a stronger signal. An attacker must be able to set up a nearby SSID, similar to an "Evil Twin" attack.

Why it matters now

EPSS 0.00246 15th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:ecobee:ecobee4_firmware:4.2.0.171:*:*:*:*:*:*:*4.2.0.171VulnerableEcobee
cpe:2.3:h:ecobee:ecobee4:-:*:*:*:*:*:*:*not specified by NVDRunning onEcobee
  • cpe:2.3:o:ecobee:ecobee4_firmware:4.2.0.171:*:*:*:*:*:*:* Versions 4.2.0.171 Vulnerable ·Ecobee
  • cpe:2.3:h:ecobee:ecobee4:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Ecobee

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-6402
  2. 2026-10-03 Alias added: GHSA-j5q8-22j2-m58f

References

Exploit 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences