Broken or risky cryptographic algorithm in silabs.com Z-Wave
Priority LOW 37CWE-327Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-327.
Summary
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.
Why it matters now
EPSS 0.00572 47th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Z-Wave (Sierra Designs): S0
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| silabs.com | Z-Wave | S0 | — | No fix listed | CNA |
| Sierra Designs | Z-Wave | S0 to before S0 | S0 | Patch available | CNA |
- Z-Wave Vendorsilabs.com Affected S0 Fixed in — No fix listed CNA
- Z-Wave VendorSierra Designs Affected S0 to before S0 Fixed in S0 Patch available CNA
CPE configurations NVD · 10
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:silabs:zgm130s037hgn_firmware:s2:*:*:*:*:*:*:* | s2 | Vulnerable | silabs.com |
| cpe:2.3:h:silabs:zgm130s037hgn:-:*:*:*:*:*:*:* | not specified by NVD | Running on | silabs.com |
| cpe:2.3:o:silabs:zm5202_firmware:s2:*:*:*:*:*:*:* | s2 | Vulnerable | silabs.com |
| cpe:2.3:h:silabs:zm5202:-:*:*:*:*:*:*:* | not specified by NVD | Running on | silabs.com |
| cpe:2.3:o:silabs:zm5101_firmware:s2:*:*:*:*:*:*:* | s2 | Vulnerable | silabs.com |
| cpe:2.3:h:silabs:zm5101:-:*:*:*:*:*:*:* | not specified by NVD | Running on | silabs.com |
| cpe:2.3:o:silabs:zgm2305a27hgn_firmware:s2:*:*:*:*:*:*:* | s2 | Vulnerable | silabs.com |
| cpe:2.3:h:silabs:zgm2305a27hgn:-:*:*:*:*:*:*:* | not specified by NVD | Running on | silabs.com |
| cpe:2.3:o:silabs:zgm230sb27hgn_firmware:s2:*:*:*:*:*:*:* | s2 | Vulnerable | silabs.com |
| cpe:2.3:h:silabs:zgm230sb27hgn:-:*:*:*:*:*:*:* | not specified by NVD | Running on | silabs.com |
- cpe:2.3:o:silabs:zgm130s037hgn_firmware:s2:*:*:*:*:*:*:* Versions s2 Vulnerable ·silabs.com
- cpe:2.3:h:silabs:zgm130s037hgn:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·silabs.com
- cpe:2.3:o:silabs:zm5202_firmware:s2:*:*:*:*:*:*:* Versions s2 Vulnerable ·silabs.com
- cpe:2.3:h:silabs:zm5202:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·silabs.com
- cpe:2.3:o:silabs:zm5101_firmware:s2:*:*:*:*:*:*:* Versions s2 Vulnerable ·silabs.com
- cpe:2.3:h:silabs:zm5101:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·silabs.com
- cpe:2.3:o:silabs:zgm2305a27hgn_firmware:s2:*:*:*:*:*:*:* Versions s2 Vulnerable ·silabs.com
- cpe:2.3:h:silabs:zgm2305a27hgn:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·silabs.com
- cpe:2.3:o:silabs:zgm230sb27hgn_firmware:s2:*:*:*:*:*:*:* Versions s2 Vulnerable ·silabs.com
- cpe:2.3:h:silabs:zgm230sb27hgn:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·silabs.com
Remediation
- Fix · CNA Z-Wave (Sierra Designs) Fixed in S0
Timeline
- 2026-10-02 Threatist record created from CVE-2013-20003
- 2026-10-03 Alias added: GHSA-w5v5-5vpm-87mx
References
More silabs.com Zgm130s037hgn Firmware vulnerabilities
- TI-2018-15256 The Z-Wave specification requires that S2 security can be downgraded to S0 or other less… CVSS 3.1HIGH 8.1
Sources
- CVE-2013-20003 · CVE Program
- CVE-2013-20003 · NVD
- FIRST EPSS
- GHSA-w5v5-5vpm-87mx · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences