Overview
- 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.
- Source
- cret@cert.org
- NVD status
- Analyzed
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 8.8
- Impact score
- 5.9
- Exploitability score
- 2.8
- Vector string
- CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Severity
- HIGH
CVSS 2.0
- Type
- Primary
- Base score
- 8.3
- Impact score
- 10
- Exploitability score
- 6.5
- Vector string
- AV:A/AC:L/Au:N/C:C/I:C/A:C
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
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"vulnerable": true,
"matchCriteriaId": "29A637D2-2EEB-46FA-925E-230467C662FB"
},
{
"criteria": "cpe:2.3:o:linear:wapirz-1:3.43:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "62E39D10-8B14-4377-A7A6-CE75DFC6B349"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
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"negate": false,
"cpeMatch": [
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"vulnerable": true,
"matchCriteriaId": "FD65067D-33BE-47A3-8586-9B7165D44120"
},
{
"criteria": "cpe:2.3:o:silabs:200_series_firmware:*:*:*:*:*:*:*:*",
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"matchCriteriaId": "5E0D4883-9F5A-447F-85ED-E47D0C5A4940"
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]