Z-Wave S0 Decryption Vulnerability in End Devices
Priority MEDIUM 40CWE-125Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.
Summary
The vulnerability described by CVE-2023-0972 has been additionally discovered in Silicon Labs Z-Wave end devices. This vulnerability may allow an unauthenticated attacker within Z-Wave range to overflow a stack buffer, leading to arbitrary code execution.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00341 27th percentileScored 2026-11-07
Fix Fixed Z-Wave SDK (Silicon Labs): 7.20.0, 7.19.3, 7.18.8 +1
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| silabs.com | Z-Wave SDK | — | 7.20.0, 7.19.3, 7.18.8, 7.17.5 | Patch available | CNA |
- Z-Wave SDK Vendorsilabs.com Affected — Fixed in 7.20.0, 7.19.3, 7.18.8, 7.17.5 Patch available CNA
CPE names CISA-ADP · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:h:silabs:z-wave_software_development_kit:*:*:*:*:*:*:*:* | — | — | silabs.com |
- cpe:2.3:h:silabs:z-wave_software_development_kit:*:*:*:*:*:*:*:* Versions — — ·silabs.com
Remediation
- Fix · CNA Z-Wave SDK (Silicon Labs) Fixed in 7.20.0, 7.19.3, 7.18.8, 7.17.5
Timeline
- 2026-10-02 Threatist record created from CVE-2023-51395
- 2026-10-03 Alias added: GHSA-cfjm-h64g-9m86
References
More silabs.com vulnerabilities
- TI-2023-24288 Heap-based buffer overflow in silabs.com Gecko Platform CVSS 3.1CRITICAL 10.0
- TI-2023-14952 Memory corruption in silabs.com Gecko Platform CVSS 3.1CRITICAL 9.8
- TI-2023-12925 Memory corruption in silabs.com Gecko Platform CVSS 3.1CRITICAL 9.8
- TI-2023-12476 Heap-based buffer overflow in silabs.com Gecko Platform CVSS 3.1CRITICAL 9.8
- TI-2022-08744 Heap-based buffer overflow in MicriumOS HTTP Server allows potential remote code execution CVSS 3.1CRITICAL 9.8
- TI-2023-12937 Memory corruption in silabs.com Gecko Platform CVSS 3.1CRITICAL 9.8
Sources
- CVE-2023-51395 · CVE Program
- CVE-2023-51395 · NVD
- FIRST EPSS
- GHSA-cfjm-h64g-9m86 · 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