{"id":"CVE-2020-9057","aliases":["EUVD-2020-29886","GHSA-pwj3-5896-6xh2"],"status":"published","title":"Z-Wave devices based on Silicon Labs 100, 200, and 300 series chipsets do not support encryption,...","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.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00439,"percentile":0.38496,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-311"],"published":"2022-01-07T04:30:23Z","modified":"2026-06-17T03:27:25Z","products":[{"vendor":"linear","product":"wadwaz-1"},{"vendor":"linear","product":"wapirz-1"},{"vendor":"silabs","product":"100_series_firmware"},{"vendor":"silabs","product":"200_series_firmware"},{"vendor":"silabs","product":"300_series_firmware"},{"vendor":"silicon labs","product":"100 series"},{"vendor":"silicon labs","product":"200 series"},{"vendor":"silicon labs","product":"300 series"}],"references":[{"url":"https://kb.cert.org/vuls/id/142629","tags":["third-party-advisory","x_refsource_CERT-VN","x_transferred","Third Party Advisory","US Government Resource"]},{"url":"https://ieeexplore.ieee.org/document/9663293","tags":["x_refsource_MISC","x_transferred","Broken Link"]},{"url":"https://github.com/CNK2100/VFuzz-public","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://doi.org/10.1109/ACCESS.2021.3138768","tags":["x_refsource_MISC","x_transferred","Broken Link"]},{"url":"https://www.kb.cert.org/vuls/id/142629","tags":["third-party-advisory","x_refsource_CERT-VN","x_transferred","Third Party Advisory","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-9057"},{"url":"https://github.com/advisories/GHSA-pwj3-5896-6xh2"}],"sources":{"cve":[{"id":"CVE-2020-9057","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.","status":"published","published":"2022-01-07T04:30:23.469Z","modified":"2024-09-16T20:03:41.584Z","cwes":["CWE-311"],"updated_at":"2026-11-02T14:35:49.538427Z"}],"euvd":[{"id":"EUVD-2020-29886","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.","status":"published","published":"2022-01-07T04:30:23Z","modified":"2024-09-16T20:03:41Z","updated_at":"2026-11-03T00:55:17.319093Z"}],"ghsa":[{"id":"GHSA-pwj3-5896-6xh2","title":"Z-Wave devices based on Silicon Labs 100, 200, and 300 series chipsets do not support encryption,...","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.","status":"published","published":"2022-01-11T00:01:42Z","modified":"2023-02-03T05:04:32Z","cwes":["CWE-311"],"updated_at":"2026-11-02T14:53:34.195392Z"}],"nvd":[{"id":"CVE-2020-9057","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.","status":"published","published":"2022-01-10T14:10:16.15Z","modified":"2026-06-17T03:27:25.283Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":8.3,"vector":"AV:A/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-311"],"updated_at":"2026-11-02T14:06:46.101987Z"}]}}