What is CVE-2018-25396?

CVE-2018-25396 is a high-severity vulnerability in Heatmiser Wifi Thermostat, classified under Plaintext Storage of a Password. CVSS score: 7.5/10. Published 2026-05-29.

How severe is CVE-2018-25396?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Heatmiser Wifi Thermostat

CVE-2018-25396

Heatmiser Wifi Thermostat 1.7 contains a credential disclosure vulnerability that allows unauthenticated attackers to retrieve administrative credentials by accessing the networkSetup.htm page. Attackers can request the networkSetup.htm en…

EPSS: 0.001 (18.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Heatmiser Wifi Thermostat — versions 1.7

Weakness classification (CWE)

CWE-256 — Plaintext Storage of a Password

References

disclosure@vulncheck.com (exploit)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2018-25396?: CVE-2018-25396 is a high-severity vulnerability in Heatmiser Wifi Thermostat, classified under Plaintext Storage of a Password. CVSS score: 7.5/10. Published 2026-05-29.
How severe is CVE-2018-25396?: High severity. CVSS v3 base score is 7.5 out of 10.