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TI-2019-15376 Aliases CVE-2019-25322GHSA-4mqf-r24p-f3vh

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

VendorProductAffected versionsFixed inStatusSource
HeatmiserHeatmiser Netmonitor3.03—No fix listedCNA
  • Heatmiser Netmonitor VendorHeatmiser Affected 3.03 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-25322
  2. 2026-10-03 Alias added: GHSA-4mqf-r24p-f3vh

References

  • 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