Vulnerability in Silabs Z\/ip Gateway Sdk
CVE-2023-4489
The first S0 encryption key is generated with an uninitialized PRNG in Z/IP Gateway products running Silicon Labs Z/IP Gateway SDK v7.18.3 and earlier. This makes the first S0 key generated at startup predictable, potentially allowing network key prediction and unauthorized S0 network access.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (43.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 43.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Silabs Z\/ip Gateway Sdk
- Silabs.com Z/ip Gateway Sdk — versions 0
Weakness classification (CWE)
References
- siliconlabs.lightning.force.com/sfc/servlet.shepherd/document/download/0698Y000… (Permissions Required, vendor-advisory)
- github.com/SiliconLabs/gecko_sdk (Third Party Advisory)
Frequently asked questions
- What is CVE-2023-4489?
- CVE-2023-4489 is a medium-severity vulnerability in Silabs Z\/ip Gateway Sdk, classified under CWE-1279. CVSS score: 6.4/10. Published 2023-12-14.
- How severe is CVE-2023-4489?
- Medium severity. CVSS v3 base score is 6.4 out of 10.