The Local HTTP API in Radio Thermostat CT50 and CT80 1.04.84 and below products allows…
Priority LOW 30CWE-20Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA.
Summary
The Local HTTP API in Radio Thermostat CT50 and CT80 1.04.84 and below products allows unauthorized access via a DNS rebinding attack. This can result in remote device temperature control, as demonstrated by a tstat t_heat request that accesses a device purchased in the Spring of 2018, and sets a home's target temperature to 95 degrees Fahrenheit. This vulnerability might be described as an addendum to CVE-2013-4860.
Why it matters now
EPSS 0.00775 55th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:radiothermostat:ct50_firmware:*:*:*:*:*:*:*:* | up to 1.04.84 | Vulnerable | Radiothermostat |
| cpe:2.3:h:radiothermostat:ct50:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Radiothermostat |
| cpe:2.3:o:radiothermostat:ct80_firmware:*:*:*:*:*:*:*:* | up to 1.04.84 | Vulnerable | Radiothermostat |
| cpe:2.3:h:radiothermostat:ct80:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Radiothermostat |
- cpe:2.3:o:radiothermostat:ct50_firmware:*:*:*:*:*:*:*:* Versions up to 1.04.84 Vulnerable ·Radiothermostat
- cpe:2.3:h:radiothermostat:ct50:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Radiothermostat
- cpe:2.3:o:radiothermostat:ct80_firmware:*:*:*:*:*:*:*:* Versions up to 1.04.84 Vulnerable ·Radiothermostat
- cpe:2.3:h:radiothermostat:ct80:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Radiothermostat
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-11315
- 2026-10-03 Alias added: GHSA-77cg-9m32-vxjv
References
More Radiothermostat Ct50 Firmware vulnerabilities
- TI-2013-04264 Radio Thermostat CT80 And CT50 with firmware 1.4.64 and earlier does not restrict access… CVSS 2.0HIGH 8.3
Sources
- CVE-2018-11315 · CVE Program
- CVE-2018-11315 · NVD
- FIRST EPSS
- GHSA-77cg-9m32-vxjv · 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