Some versions of Sonos One (1st and 2nd generation) allow partial or full memory access via attacker controlled hardware that can be attached to the Mini-PCI Express slot on the motherboard that hosts the WiFi card on the device.
Exploitability
AV:PAC:LPR:NUI:NScope
S:UImpact
C:HI:HA:H6.8/CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H