Security readout for executives and security teams
Plain-English summary
This CVE describes a nearby Wi-Fi impersonation risk for Ecobee4 4.2.0.171 devices. A stronger unencrypted network using the same SSID could attract the device despite encrypted settings. The evidence points to localized exposure, not internet-scale exploitation.
Executive priority
Prioritize this for sites using Ecobee4 devices in offices, facilities, or regulated environments. Treat it as a localized physical-proximity risk requiring inventory and vendor-update review.
Technical view
The issue is an Evil Twin-style Wi-Fi behavior: deauthentication plus a competing stronger SSID may cause the device to associate with an unencrypted network. The bundle provides no CVSS, CWE, CPE, named patch, or vendor mitigation, and the affected metadata is incomplete.
Likely exposure
Exposure is limited to organizations or homes using Ecobee4 devices on firmware 4.2.0.171 where an attacker can operate nearby Wi-Fi equipment.
Exploitation context
The source bundle does not show active exploitation or KEV listing. The described attack requires physical or close radio proximity and a competing SSID with stronger signal.
Researcher notes
The record has weak metadata: severity is unknown, affected vendor/product fields are n/a, and the included reference URL title appears unrelated to Ecobee. Rely on the CVE description, not unsupported assumptions.
Mitigation direction
- Check Ecobee vendor guidance for firmware updates or advisories.
- Avoid deploying affected devices on sensitive production networks.
- Use network segmentation for IoT and building-control devices.
- Monitor for unexpected open Wi-Fi associations or duplicate SSIDs nearby.
Validation and detection
- Inventory Ecobee4 devices and record firmware versions.
- Confirm whether any device runs firmware 4.2.0.171.
- Review wireless logs for unexpected SSID roaming or open-network associations.
- Check whether duplicate SSIDs exist near protected locations.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2018-6402 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://garrettmiller.github.io/meross-mss110-vuln/CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.