CVE-2013-20003 — Z-Wave devices from Sierra Designs (circa 2013) and Silicon Labs (using S0 secur

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.

01What is this vulnerability?

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.

02Affected products

Vendor	Product	Versions
Silicon Labs	Z	Wave — S0
Sierra Designs	Z	Wave — S0

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2022-02-04T22:33:05.137Z
• Last modified: 2024-09-16T22:10:27.914Z

09References

• sensepost.com — https://sensepost.com/cms/resources/conferences/2013/bh_zwave/Security%20Evaluat…
• www.pentestpartners.com — https://www.pentestpartners.com/security-blog/z-shave-exploiting-z-wave-downgrad…
• orangecyberdefense.com — https://orangecyberdefense.com/global/blog/sensepost/blackhat-conference-z-wave-…