CVE-2026-7413
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 hidden, persistent backdoor was found in Yarbo firmware v2.3.9 that provides remote, unauthenticated (or weakly authenticated) access to privileged functionality. The backdoor is undocumented, cannot be disabled via user-facing settings, and survives factory reset and ordinary firmware updates.
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 · high confidenceYarbo firmware v2.3.9 contains an undocumented backdoor providing remote, unauthenticated or weakly authenticated access to privileged functionality. The backdoor is embedded at the firmware level and persists through factory reset and ordinary firmware updates, making it不可清除 through normal user actions.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data= 2.3.9= 2.3.9CVSS 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
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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 installed firmware versionAccess the device admin interface or use the Yarbo mobile application to view current firmware version information. On the device, navigate to Settings > About > Firmware Version, or use the CLI command 'yarbo-cli system info' if available.Affected if Firmware version displays exactly 2.3.9 on either Yarbo Lawn Mower or Yarbo Lawn Mower Pro models
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Verify network listening servicesUse network scanning tools (nmap, netstat) from a trusted host on the same network to scan the device IP for open ports. Document any listening services, especially those on unusual or undocumented ports beyond standard HTTP (80/443) and device management ports.Affected if Unexpected listening ports or services are present that are not documented in official Yarbo product documentation
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Check for undocumented remote access pathsExamine the device for alternative web paths, API endpoints, or management interfaces by probing common administrative URIs (such as /admin, /debug, /api, /hidden, /maintenance). Review any HTTP responses for administrative functionality accessible without login.Affected if Undocumented endpoints or administrative interfaces respond successfully and provide access to privileged functionality without authentication or with weak credentials
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Test authentication persistence across resetPerform a factory reset through the standard user interface or reset button. After reset completes, attempt to access any previously discovered backdoor paths or undocumented interfaces to verify they persist.Affected if Access paths discovered in step 3 remain functional after factory reset, indicating persistent backdoor
User is affected if installed firmware version is exactly 2.3.9 AND the device exhibits undocumented listening services, remote access paths, or administrative interfaces that persist after factory reset.
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 affected devices on restricted network segments pending vendor-supplied patched firmware; if no official fix is available, consider device replacement. Coordinate with vendor to verify firmware integrity and obtain clean builds.
- Consultation8.0 h
- Implementation24.0 h
- Testing16.0 h
- Review / QA12.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $16,768.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-7413 — 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-2026-7413 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
- No spam, self-promotion, credentials, or personal data