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01 Record

CVE-2013-20003

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.

UnratedPUBLISHEDCNA: certcc
CNA base scoreUnratedNo CNA CVSS vector
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02 Description

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.

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
0.57% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 47.0% of scored records. A rank, not a probability.
NVD base score
8.3 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-16.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2022-02-04 22:33Z4 YR AGO
Last updated
2024-09-16 22:10Z2 YR AGO
Reserved
2022-01-26
Assigning CNA
certcc
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
  • CWE-327Use of a Broken or Risky Cryptographic AlgorithmClass
  • CWE-338Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)Base
Data version
5.1
Document digest
b5a087beb150e5cd6d329c32a7b439181ba806c4ecb448fbccbc0bb60ddd9ad8

05 Affected products

VendorProductVersionsPlatforms
Silicon LabsZ-WaveS0—
Sierra DesignsZ-WaveS0 to < S0—

06 References