An issue was discovered in myStrom WiFi Switch V1 before 2.66, WiFi Switch V2 before…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-287.
Summary
An issue was discovered in myStrom WiFi Switch V1 before 2.66, WiFi Switch V2 before 3.80, WiFi Switch EU before 3.80, WiFi Bulb before 2.58, WiFi LED Strip before 3.80, WiFi Button before 2.73, and WiFi Button Plus before 2.73. The process of registering a device with a cloud account was based on an activation code derived from the device MAC address. By guessing valid MAC addresses or using MAC addresses printed on devices in shops and reverse engineering the protocol, an attacker would have been able to register previously unregistered devices to their account. When the rightful owner would have connected them after purchase to their WiFi network, the devices would not have registered with their account, would subsequently not have been controllable from the owner's mobile app, and would not have been visible in the owner's account. Instead, they would have been under control of the attacker.
Why it matters now
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 · 14
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:mystrom:wifi_switch_firmware:*:*:*:*:*:*:*:* | before 2.66 | Vulnerable | Mystrom |
| cpe:2.3:h:mystrom:wifi_switch:v1:*:*:*:*:*:*:* | v1 | Running on | Mystrom |
| cpe:2.3:o:mystrom:wifi_switch_firmware:*:*:*:*:*:*:*:* | before 3.80 | Vulnerable | Mystrom |
| cpe:2.3:h:mystrom:wifi_switch:v2:*:*:*:*:*:*:* | v2 | Running on | Mystrom |
| cpe:2.3:o:mystrom:wifi_button_plus_firmware:*:*:*:*:*:*:*:* | before 2.73 | Vulnerable | Mystrom |
| cpe:2.3:h:mystrom:wifi_button_plus:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Mystrom |
| cpe:2.3:o:mystrom:wifi_button_firmware:*:*:*:*:*:*:*:* | before 2.73 | Vulnerable | Mystrom |
| cpe:2.3:h:mystrom:wifi_button:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Mystrom |
| cpe:2.3:o:mystrom:wifi_switch_eu_firmware:*:*:*:*:*:*:*:* | before 3.80 | Vulnerable | Mystrom |
| cpe:2.3:h:mystrom:wifi_switch_eu:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Mystrom |
- cpe:2.3:o:mystrom:wifi_switch_firmware:*:*:*:*:*:*:*:* Versions before 2.66 Vulnerable ·Mystrom
- cpe:2.3:h:mystrom:wifi_switch:v1:*:*:*:*:*:*:* Versions v1 Running on ·Mystrom
- cpe:2.3:o:mystrom:wifi_switch_firmware:*:*:*:*:*:*:*:* Versions before 3.80 Vulnerable ·Mystrom
- cpe:2.3:h:mystrom:wifi_switch:v2:*:*:*:*:*:*:* Versions v2 Running on ·Mystrom
- cpe:2.3:o:mystrom:wifi_button_plus_firmware:*:*:*:*:*:*:*:* Versions before 2.73 Vulnerable ·Mystrom
- cpe:2.3:h:mystrom:wifi_button_plus:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Mystrom
- cpe:2.3:o:mystrom:wifi_button_firmware:*:*:*:*:*:*:*:* Versions before 2.73 Vulnerable ·Mystrom
- cpe:2.3:h:mystrom:wifi_button:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Mystrom
- cpe:2.3:o:mystrom:wifi_switch_eu_firmware:*:*:*:*:*:*:*:* Versions before 3.80 Vulnerable ·Mystrom
- cpe:2.3:h:mystrom:wifi_switch_eu:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Mystrom
Show 4 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:mystrom:wifi_bulb_firmware:*:*:*:*:*:*:*:* | before 2.58 | Vulnerable | Mystrom |
| cpe:2.3:h:mystrom:wifi_bulb:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Mystrom |
| cpe:2.3:o:mystrom:wifi_led_strip_firmware:*:*:*:*:*:*:*:* | before 3.80 | Vulnerable | Mystrom |
| cpe:2.3:h:mystrom:wifi_led_strip:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Mystrom |
- cpe:2.3:o:mystrom:wifi_bulb_firmware:*:*:*:*:*:*:*:* Versions before 2.58 Vulnerable ·Mystrom
- cpe:2.3:h:mystrom:wifi_bulb:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Mystrom
- cpe:2.3:o:mystrom:wifi_led_strip_firmware:*:*:*:*:*:*:*:* Versions before 3.80 Vulnerable ·Mystrom
- cpe:2.3:h:mystrom:wifi_led_strip:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Mystrom
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-15478
- 2026-10-03 Alias added: GHSA-g23c-wqcr-3333
References
More Mystrom Wifi Bulb Firmware vulnerabilities
- TI-2018-11039 An issue was discovered in myStrom WiFi Switch V1 before 2.66, WiFi Switch V2 before… CVSS 3.0HIGH 8.8
- TI-2018-11035 An issue was discovered in myStrom WiFi Switch V1 before 2.66, WiFi Switch V2 before… CVSS 3.0HIGH 8.1
- TI-2018-11038 An issue was discovered in myStrom WiFi Switch V1 before 2.66, WiFi Switch V2 before… CVSS 3.0MEDIUM 6.5
Sources
- CVE-2018-15478 · CVE Program
- CVE-2018-15478 · NVD
- FIRST EPSS
- GHSA-g23c-wqcr-3333 · 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