CVE-2026-4476
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedA vulnerability was found in Yi Technology YI Home Camera 2 2.1.1_20171024151200. The impacted element is an unknown function of the file home/web/ipc of the component CGI Endpoint. Performing a manipulation results in missing authentication. Access to the local network is required for this attack. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceA missing authentication vulnerability exists in the CGI endpoint (home/web/ipc) of Yi Technology YI Home Camera 2 version 2.1.1_20171024151200. An unauthenticated attacker on the local network can access this CGI endpoint without any credentials, potentially allowing unauthorized configuration changes or data access.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Adjacent
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify the camera modelCheck the device label or web interface to confirm the exact model is Yi Technology YI Home Camera 2Affected if The device is not a Yi Home Camera 2 model
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Check the firmware versionAccess the camera's web interface or check via the Yi Home app to view the firmware version. Compare against 2.1.1_20171024151200Affected if The installed firmware version matches 2.1.1_20171024151200 exactly
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Test CGI endpoint accessibilityFrom a device on the same local network, attempt to access http://[camera-ip]/cgi-bin/home/web/ipc without providing any authentication credentialsAffected if The endpoint returns a valid response without requiring login credentials
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Verify network exposureCheck if the camera is directly accessible from network segments that contain untrusted or guest devices, or if port 80/443 is exposed to non-local IPsAffected if The camera HTTP interface is reachable from untrusted network segments without VLAN isolation
The user is affected if they have a Yi Home Camera 2 running firmware version 2.1.1_20171024151200 and the CGI endpoint at home/web/ipc accepts unauthenticated requests from their local network.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataIsolate the affected camera on a restricted VLAN or network segment to limit exposure, as the vendor has not provided a patch. Monitor for unauthorized access attempts and consider replacement with a supported device.
- Consultation2.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2026-4476 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-4476 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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