Description
Z-Wave devices based on Silicon Labs 100, 200, and 300 series chipsets do not support encryption, allowing an attacker within radio range to take control of or cause a denial of service to a vulnerable device. An attacker can also capture and replay Z-Wave traffic. Firmware upgrades cannot directly address this vulnerability as it is an issue with the Z-Wave specification for these legacy chipsets. One way to protect against this vulnerability is to use 500 or 700 series chipsets that support Security 2 (S2) encryption. As examples, the Linear WADWAZ-1 version 3.43 and WAPIRZ-1 version 3.43 (with 300 series chipsets) are vulnerable.
References (5)
Scores
CVSS v3
8.8
EPSS
0.0004
EPSS Percentile
11.4%
Attack Vector
ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-311
Status
published
Products (5)
linear/wadwaz-1
3.43
linear/wapirz-1
3.43
silabs/100_series_firmware
silabs/200_series_firmware
silabs/300_series_firmware
Published
Jan 10, 2022
Tracked Since
Feb 18, 2026