CVE-2013-20003
HIGHSilicon Labs Z-Wave Firmware - Use of a Broken or Risky Cryptographic Algorithm via Shared Network Key
Title source: llmDescription
Z-Wave devices from Sierra Designs (circa 2013) and Silicon Labs (using S0 security) may use a known, shared network key of all zeros, allowing an attacker within radio range to spoof Z-Wave traffic.
References (3)
Core 3
Core References
Technical Description, Third Party Advisory x_refsource_misc
https://sensepost.com/cms/resources/conferences/2013/bh_zwave/Security%20Evaluation%20of%20Z-Wave_WP.pdf
Exploit, Third Party Advisory x_refsource_misc
https://www.pentestpartners.com/security-blog/z-shave-exploiting-z-wave-downgrade-attacks/
Third Party Advisory x_refsource_misc
https://orangecyberdefense.com/global/blog/sensepost/blackhat-conference-z-wave-security/
Scores
CVSS v3
8.3
EPSS
0.0056
EPSS Percentile
42.2%
Attack Vector
ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Details
CWE
CWE-327
CWE-338
Status
published
Products (5)
silabs/zgm130s037hgn_firmware
s2
silabs/zgm2305a27hgn_firmware
s2
silabs/zgm230sb27hgn_firmware
s2
silabs/zm5101_firmware
s2
silabs/zm5202_firmware
s2
Published
Feb 04, 2022
Tracked Since
Feb 18, 2026