CVE-2020-9057
highpriority · track · 35OT risk · elevatedEPSS 0.004 · 35 %ileEUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (10)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (16)
External citations — patches, advisories, analysis.
- https://doi.org/10.1109/ACCESS.2021.3138768cnnvd
- https://github.com/CNK2100/VFuzz-publiccnnvd
- https://ieeexplore.ieee.org/document/9663293cnnvd
- https://kb.cert.org/vuls/id/142629cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2020-9057cnnvd
- https://www.kb.cert.org/vuls/id/142629cnnvd
- https://doi.org/10.1109/ACCESS.2021.3138768enisa_euvd
- https://github.com/CNK2100/VFuzz-publicenisa_euvd
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