Vulnerability in Linear Wadwaz-1
CVE-2020-9057
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.
EPSS: 0.004 (33.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Linear Wadwaz-1 — versions 3.43
- Linear Wapirz-1 — versions 3.43
- Silabs 100_series_firmware
- Silabs 200_series_firmware
- Silabs 300_series_firmware
- Silicon Labs 100 Series — versions all
- Silicon Labs 200 Series — versions all
- Silicon Labs 300 Series — versions all
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cret@cert.org (US Government Resource, x_refsource_CERT-VN, Third Party Advisory, third-party-advisory)
- cret@cert.org (x_refsource_MISC, Broken Link)
- cret@cert.org (Third Party Advisory, x_refsource_MISC)
- cret@cert.org (x_refsource_MISC, Broken Link)
- cret@cert.org (US Government Resource, x_refsource_CERT-VN, Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2020-9057?
- CVE-2020-9057 is a high-severity vulnerability in Linear Wadwaz-1, classified under Missing Encryption of Sensitive Data. CVSS score: 8.8/10. Published 2022-01-10.
- How severe is CVE-2020-9057?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2020-9057 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.