CVE-2026-4478: Yi Technology Yi Home Camera

High severity, CVSS 8.1. EPSS: 0.3% chance of exploitation in the next 30 days.

A vulnerability was identified in Yi Technology YI Home Camera 2 2.1.1_20171024151200. This impacts an unknown function of the file home/web/ipc of the component HTTP Firmware Update Handler. The manipulation leads to improper verification of cryptographic signature. The attack is possible to be carried out remotely. The complexity of an attack is rather high. The exploitability is said to be difficult. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

• Yi Technology Yi Home Camera: version 2 2.1.1_20171024151200 only

Published 2026-03-20. Last modified 2026-06-17.