CVE-2018-25396 HIGH

CVE-2018-25396: Heatmiser Wifi Thermostat 1.7 Credential Disclosure via networkSetup.htm

Vendor Heatmiser
Product Heatmiser Wifi Thermostat
Weakness CWE-256
Published May 29, 2026
Last update May 29, 2026

CVSS base score

8.7/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

What the vulnerability does

01Description

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 endpoint and extract plaintext username and password values from HTML form fields to gain administrative access to the thermostat.

Key dates

02Disclosure timeline

May 29, 2026 CVE published
May 29, 2026 Record updated