What is CVE-2017-5251?

CVE-2017-5251 is a high-severity vulnerability in Insteon Hub, classified under Authentication Bypass by Capture-replay. CVSS score: 8.1/10. Published 2018-02-22.

How severe is CVE-2017-5251?

High severity. CVSS v3 base score is 8.1 out of 10.

Vulnerability in Insteon Hub

CVE-2017-5251

In version 1012 and prior of Insteon's Insteon Hub, the radio transmissions used for communication between the hub and connected devices are not encrypted.

Published 2018-02-22 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.005 (42.0th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 42.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Weakness classification (CWE)

References

blog.rapid7.com/2017/09/22/multiple-vulnerabilities-in-wink-and-insteon-smart-h… (Third Party Advisory)

Frequently asked questions

What is CVE-2017-5251?: CVE-2017-5251 is a high-severity vulnerability in Insteon Hub, classified under Authentication Bypass by Capture-replay. CVSS score: 8.1/10. Published 2018-02-22.
How severe is CVE-2017-5251?: High severity. CVSS v3 base score is 8.1 out of 10.