Heatmiser Netmonitor 3.03 - Hardcoded Credentials
Priority HIGH 79CWE-798Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-798.
Summary
Heatmiser Netmonitor 3.03 contains a hardcoded credentials vulnerability in the networkSetup.htm page with predictable admin login credentials. Attackers can access the device by using the hard-coded username 'admin' and password 'admin' in the hidden form input fields.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00321 25th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2019-25322
- 2026-10-03 Alias added: GHSA-4mqf-r24p-f3vh
References
More Heatmiser vulnerabilities
- TI-2018-15621 Heatmiser Wifi Thermostat 1.7 Credential Disclosure via networkSetup.htm CVSS 4.0HIGH 8.7
- TI-2019-15377 Heatmiser Netmonitor 3.03 - HTML Injection CVSS 4.0MEDIUM 5.1
- TI-2019-15760 Heatmiser Wifi Thermostat 1.7 Cross-Site Request Forgery CVSS 4.0MEDIUM 5.3
Sources
- CVE-2019-25322 · CVE Program
- CVE-2019-25322 · NVD
- FIRST EPSS
- GHSA-4mqf-r24p-f3vh · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences