CVE-2026-4478

HIGH

Yi Technology YI Home Camera HTTP Firmware Update ipc signature verification

Title source: cna
STIX 2.1

Description

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.

References (3)

Core 3
Core References
Vdb Entry vdb-entry
VDB-351768 | Yi Technology YI Home Camera HTTP Firmware Update ipc signature verification
https://vuldb.com/?id.351768
Signature, Permissions Required signature permissions-required
VDB-351768 | CTI Indicators (IOB, IOC, IOA)
https://vuldb.com/?ctiid.351768
Third Party Advisory third-party-advisory
Submit #773162 | yitechnology YI Home Camera 2 2.1.1_20171024151200 HTTP Firmware OTA Without Cryptographic Signature
https://vuldb.com/?submit.773162

Scores

CVSS v3 8.1
EPSS 0.0027
EPSS Percentile 18.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

CWE
CWE-345 CWE-347
Status published
Products (1)
Yi Technology/YI Home Camera 2 2.1.1_20171024151200
Published Mar 20, 2026
Tracked Since Mar 20, 2026