CVE-2018-15476

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 SSL/TLS server certificate in the device to cloud communication was not verified by the device. As a result, an attacker in control of the network traffic of a device could have taken control of a device by intercepting and modifying commands issued from the server to the device in a Man-in-the-Middle attack. This included the ability to inject firmware update commands into the communication and cause the device to install maliciously modified firmware.

Published: 2018-08-30 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-15476 is rated Moderate Risk (42.8/100): CVSS High severity, with low exploitation likelihood (EPSS 0.14%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2018-15476

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-03-30 0.31% 0.14% -0.18%
2 2025-03-29 0.11% 0.31% +0.21%
3 2023-03-07 — 0.11% —

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-15476

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.1 3.0 HIGH
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.2 5.9 [email protected]
9.3 2.0 HIGH
AV:N/AC:M/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 8.6 10.0 [email protected]

Weakness enumeration for CVE-2018-15476

Affected software / configurations for CVE-2018-15476

Vendor Product Version Raw CPE
mystrom wifi_switch_firmware < 2.66 cpe:2.3:o:mystrom:wifi_switch_firmware:*:*:*:*:*:*:*:*
mystrom wifi_switch_firmware < 3.80 cpe:2.3:o:mystrom:wifi_switch_firmware:*:*:*:*:*:*:*:*
mystrom wifi_button_plus_firmware < 2.73 cpe:2.3:o:mystrom:wifi_button_plus_firmware:*:*:*:*:*:*:*:*
mystrom wifi_button_firmware < 2.73 cpe:2.3:o:mystrom:wifi_button_firmware:*:*:*:*:*:*:*:*
mystrom wifi_switch_eu_firmware < 3.80 cpe:2.3:o:mystrom:wifi_switch_eu_firmware:*:*:*:*:*:*:*:*
mystrom wifi_bulb_firmware < 2.58 cpe:2.3:o:mystrom:wifi_bulb_firmware:*:*:*:*:*:*:*:*
mystrom wifi_led_strip_firmware < 3.80 cpe:2.3:o:mystrom:wifi_led_strip_firmware:*:*:*:*:*:*:*:*

References for CVE-2018-15476

cvelogic Threat Intelligence