Serial API Buffer Overflow in Z/IP Gateway
Priority LOW 33CWE-125Published · Updated
Key facts
- Attack vector
- Physical
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- 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
Multiple buffer overflow vulnerabilities in SiLabs Z/IP Gateway SDK version 7.18.01 and earlier allow an attacker with invasive physical access to a Z-Wave controller device to overwrite global memory and potentially execute arbitrary code.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00271 19th percentileScored 2026-11-07
Fix Fixed Z/IP Gateway (Silicon Labs): 7.18.03
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/IP Gateway | — | 7.18.03 | Patch available | CNA |
- Z/IP Gateway Vendorsilabs.com Affected — Fixed in 7.18.03 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:silabs:z\/ip_gateway_sdk:*:*:*:*:*:*:*:* | up to 7.18.01 | Vulnerable | silabs.com |
- cpe:2.3:a:silabs:z\/ip_gateway_sdk:*:*:*:*:*:*:*:* Versions up to 7.18.01 Vulnerable ·silabs.com
Remediation
- Fix · CNA Z/IP Gateway (Silicon Labs) Fixed in 7.18.03
Timeline
- 2026-10-02 Threatist record created from CVE-2023-0970
- 2026-10-03 Alias added: GHSA-8c88-9jmc-phqr
References
More silabs.com Z/ip Gateway Sdk vulnerabilities
- TI-2023-04142 Z/IP Gateway Use of Uninitialized PRNG when Generating S0 Encryption Key CVSS 3.1CRITICAL 9.8
- TI-2023-00923 Buffer overflow in S0 Decryption on Z/IP Gatweay CVSS 3.1CRITICAL 9.6
- TI-2023-00922 Command Authentication Bypass in Z/IP Gateway CVSS 3.1CRITICAL 9.6
- TI-2023-00920 Global read overflow in Z/IP Gateway CVSS 3.1LOW 3.5
Sources
- CVE-2023-0970 · CVE Program
- CVE-2023-0970 · NVD
- FIRST EPSS
- GHSA-8c88-9jmc-phqr · 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