CVE-2013-20003

8.3 HIGH 0.6% exploit odds No fix listed

What it is

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.

At a glance

Exploitability: Can be exploited from the same network segment without logging in. High risk of data exposure, data tampering, service disruption.
Exploit odds: 0.6% chance of exploitation in the next 30 days (EPSS).
Fix: No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

2022-02-04 23:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-16 23:52 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 0.6% in the next 30 days (EPSS).
Severity: 8.3 HIGH (CVSS).
Fix: none linked yet, which raises it.

Details

Published: 2022-02-04 23:15 UTC
Last modified: 2026-06-16 23:52 UTC
Exploit probability: 0.6% · EPSS, next 30 days
Weakness: CWE-327 · Broken cryptographic algorithm
Record status: Modified

Affected

Silabs zgm130s037hgn Firmware s2
Silabs zm5202 Firmware s2
Silabs zm5101 Firmware s2
Silabs zgm2305a27hgn Firmware s2
Silabs zgm230sb27hgn Firmware s2

Attack profile CVSS 3.1 · 8.3

Attack vector: Adjacent network
Complexity: High
Privileges needed: None
User interaction: None
Scope: Changed
Confidentiality: High
Integrity: High
Availability: High

Raw vector

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Is it in your code?

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References

NVD record · CVE.org record