CVE-2026-4476

Unauthenticated CGI access via ipc endpoint

Published Mar 20, 2026 · Updated Mar 20, 2026

Missing authentication in YI Technology YI Home Camera 2 version 2.1.1_20171024151200 allows remote attackers to invoke its CGI endpoint. An unknown function in home/web/ipc accepts CGI requests without performing the required authentication check. Local-network access is required, but credentials and user interaction are not; public sources do not identify the exact exposed CGI operation.

CVSS severity6.3
Medium
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in YI Technology YI Home Camera 2 version 2.1.1_20171024151200 allows remote attackers to invoke its CGI endpoint. An unknown function in home/web/ipc accepts CGI requests without performing the required authentication check. Local-network access is required, but credentials and user interaction are not; public sources do not identify the exact exposed CGI operation.

The record

CVE
CVE-2026-4476
Published
Mar 20, 2026
Updated
Mar 20, 2026
Vendor
YI Technology
Product
YI Home Camera
Classifications
CWE-287, CWE-306, T1190
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 20, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 20, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2 2.1.1_20171024151200

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

YI Technology · YI Home Cameraversion=2 2.1.1_20171024151200

Published CVSS scores

6.3VulDBCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
5.8VulDBAV:A/AC:L/Au:N/C:P/I:P/A:P
2.1VulDBCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-287Improper Authentication
CWE-306Missing Authentication for Critical Function
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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