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 endpoint and extract plaintext username and password values from HTML form fields to gain administrative access to the thermostat.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.003 (21.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 21.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Heatmiser Wifi Thermostat — versions 1.7
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/45623 (exploit)
- www.vulncheck.com/advisories/heatmiser-wifi-thermostat-credential-disclosure-vi… (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.