CVE-2026-9770

Kasa EC71 v4 and EC70 v4 firmware contains a static cryptographic private key stored in a read-only filesystem

that is shared across devices.  An

attacker with access to the firmware image can extract the embedded key.

Successful

exploitation may allow an unauthenticated attacker on the same network to use

this key in the web management service, compromising the confidentiality of

encrypted communications. This may enable passive decryption of traffic or

active man-in-the-middle (MITM) attacks