Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| silabs.com | Z/IP Gateway SDK | ≤ 7.18.3 | — |