CVE-2026-4478
Received Received - Intake
Improper Signature Verification in Yi Home Camera Firmware Update

Publication date: 2026-03-20

Last updated on: 2026-03-20

Assigner: VulDB

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.
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Meta Information
Published
2026-03-20
Last Modified
2026-03-20
Generated
2026-05-07
AI Q&A
2026-03-20
EPSS Evaluated
2026-05-05
NVD
CVE-2026-4478
EUVD
EUVD-2026-13602
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
yi_technology yi_home_camera 2.1.1_20171024151200
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-347 The product does not verify, or incorrectly verifies, the cryptographic signature for data.
CWE-345 The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability exists in the Yi Technology YI Home Camera 2 version 2.1.1_20171024151200, specifically in an unknown function within the file home/web/ipc of the HTTP Firmware Update Handler component.

The issue involves improper verification of a cryptographic signature, which means the device may accept firmware updates or other data without properly confirming their authenticity.

An attacker can exploit this vulnerability remotely, although the attack complexity is high and exploitability is considered difficult. Despite this, a public exploit is available.


How can this vulnerability impact me? :

Exploiting this vulnerability could allow an attacker to remotely execute unauthorized actions on the affected device by bypassing cryptographic signature verification.

This could lead to the installation of malicious firmware or unauthorized modifications, potentially compromising the confidentiality, integrity, and availability of the device and its data.


How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:

I don't know


How can this vulnerability be detected on my network or system? Can you suggest some commands?

I don't know


What immediate steps should I take to mitigate this vulnerability?

I don't know


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