DPA countermeasures in Silicon Labs' Series 2 devices are not reseeded under certain conditions.
This may allow an attacker to eventually extract secret keys through a DPA attack.
Exploitability
AV:PAC:HAT:PPR:NUI:NVulnerable System
VC:LVI:NVA:NSubsequent System
SC:NSI:NSA:N1/CVSS:4.0/AV:P/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:NOther