How severe is CVE-2018-15480?

CVE-2018-15480 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-15480 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-15480?

CVE-2018-15480 primarily affects Mystrom Wifi Switch Firmware. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-15480?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-15480 published?

CVE-2018-15480 was published on 2018-08-30 and last updated on 2026-06-17.

CVE-2018-15480

CVE-2018-15480 is a high-severity vulnerability in Mystrom Wifi Switch Firmware with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.5
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Mystrom Wifi Switch Firmware
Published: 2018-08-30
Last modified: 2026-06-17

Description

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 cloud API had a hidden parameter, which allowed an authenticated user to reconfigure the server URL for a device registered to their account. In combination with an insecure device registration vulnerability, this allowed an attacker to reconfigure a maliciously registered device to their own rogue replica of the myStrom API and issue commands to the device, including firmware update commands.

Frequently asked questions

What is CVE-2018-15480?: 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 cloud API had a hidden parameter, which allowed an authenticated user to reconfigure the server URL for a device registered to their account. In combination with an insecure device registration vulnerability, this allowed an attacker to reconfigure a maliciously registered device to their own rogue replica of the myStrom API and issue commands to the device, including firmware update commands.
How severe is CVE-2018-15480?: CVE-2018-15480 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-15480 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-15480?: CVE-2018-15480 primarily affects Mystrom Wifi Switch Firmware. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-15480?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-15480 published?: CVE-2018-15480 was published on 2018-08-30 and last updated on 2026-06-17.

References

https://www.swisscom.ch/content/dam/swisscom/de/about/nachhaltigkeit/digitale-schweiz/sicherheit/bug-bounty/files/cve-2018-15476ff.txt

Affected products (6)

cpe:2.3:o:mystrom:wifi_switch_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mystrom:wifi_button_plus_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mystrom:wifi_button_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mystrom:wifi_switch_eu_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mystrom:wifi_bulb_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mystrom:wifi_led_strip_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Mystrom Wifi Switch Firmware

CVE-2018-15477 — Critical (CVSS 9.8): myStrom WiFi Switch V1 devices before 2.66 did not sanitize a parameter received from the cloud that was used in an OS…
CVE-2018-15478 — High (CVSS 8.1): An issue was discovered in myStrom WiFi Switch V1 before 2.66, WiFi Switch V2 before 3.80, WiFi Switch EU before 3.80,…
CVE-2018-15476 — High (CVSS 8.1): An issue was discovered in myStrom WiFi Switch V1 before 2.66, WiFi Switch V2 before 3.80, WiFi Switch EU before 3.80,…
CVE-2018-15479 — Medium (CVSS 6.5): An issue was discovered in myStrom WiFi Switch V1 before 2.66, WiFi Switch V2 before 3.80, WiFi Switch EU before 3.80,…

All CVEs affecting Mystrom Wifi Switch Firmware →