CVSS 3.1
9.8 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCVE-2023-4489
Critical (9.8) in silabs z\/ip gateway sdk. EPSS 0.5% chance of exploitation in the next 30 days.
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.
Severity
- EPSS
- 0.5% chance of exploitation in the next 30 days; higher than 44% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-908, CWE-1279
- Published
- Modified
- Record from
- the NVD, synced
Affected
- silabs:z\/ip_gateway_sdk
References
- https://github.com/SiliconLabs/gecko_sdk
- https://siliconlabs.lightning.force.com/sfc/servlet.shepherd/document/download/0698Y00000buWj0QAE?operationContext=S1
- https://github.com/SiliconLabs/gecko_sdk
- https://siliconlabs.lightning.force.com/sfc/servlet.shepherd/document/download/0698Y00000buWj0QAE?operationContext=S1