CVE-2019-3998: Simplisafe SS3 Firmware

Medium severity, CVSS 5.5. EPSS: 0.4% chance of exploitation in the next 30 days.

Authentication bypass using an alternate path or channel in SimpliSafe SS3 firmware 1.4 allows a local, unauthenticated attacker to modify the Wi-Fi network the base station connects to.

Affected products

• Simplisafe Simplisafe SS3 Firmware: version 1.4 only

Published 2020-02-13. Last modified 2026-06-17.