CVE-2026-102370

Kasa EC70 v4

and EC71 v4 do not logically disable the production debug interface at the

firmware or chip level and do not lock the bootloader.  Although the debug traces are physically

severed during manufacturing, an attacker with physical access can restore the

connection, interrupt the boot process, and manipulate boot parameters to enter

a non-standard initialization path that exposes an unauthenticated root shell

during startup.

Successful exploitation may allow an

attacker with physical access to obtain root-level command access during device

startup, resulting in loss of confidentiality, integrity, and availability for

the affected device. Exploitation requires device disassembly, restoration of

the severed debug connection, and manipulation of the boot process.