CVE-2021-40170: Securitashome Alarm System Firmware

Medium severity, CVSS 6.8. EPSS: 0.9% chance of exploitation in the next 30 days.

An RF replay attack vulnerability in the SecuritasHome home alarm system, version HPGW-G 0.0.2.23F BG_U-ITR-F1-BD_BL.A30.20181117, allows an attacker to trigger arbitrary system functionality by replaying previously recorded signals. This lets an adversary, among other things, disarm an armed system.

Affected products

• Securitashome Securitashome Alarm System Firmware: version hpgw-g_0.0.2.23f_bg_u-itr-f1-bd_bl.a30.20181117 only

Published 2021-12-15. Last modified 2026-06-17.