I9 FirmwareOperating system · Tenda

CVE-2026-7036

CRITICAL · 9.8 CVSS v3.1 Published 2026-04-26
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Public exploit Remotely reachable No privileges Zero-click

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 · unedited
A vulnerability was identified in Tenda i9 1.0.0.5(2204). This vulnerability affects the function R7WebsSecurityHandlerfunction of the component HTTP Handler. The manipulation leads to path traversal. Remote exploitation of the attack is possible. The exploit is publicly available and might be used.

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 confidence

A path traversal vulnerability exists in Tenda i9 router firmware version 1.0.0.5(2204), specifically in the HTTP Handler component's R7WebsSecurityHandlerfunction. This allows remote attackers to access files outside the web root directory via specially crafted HTTP requests. The CVSS 9.8 score indicates trivial network exploitation with no authentication required.

MitigationApply vendor firmware update when available; until then, restrict administrative interface access to trusted networks only via firewall rules or VPN, as the exploit is publicly available.

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
I9 FirmwareOperating system
Affected:= 1.0.0.5\(2204\)

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
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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify Tenda i9 router on your network
    Locate the device by MAC address, network inventory, or access the router admin interface and check the model information page typically found under System or Status settings
    Affected if The device model is Tenda i9
  2. Check installed firmware version
    Log into the router web interface, navigate to System Settings or Firmware Upgrade section, and record the firmware version number displayed
    Affected if The firmware version shown is 1.0.0.5(2204)
  3. Verify HTTP service accessibility
    Attempt to access the router login page via HTTP on the default Tenda web port (usually port 80) from a network-connected host
    Affected if The HTTP administration interface is reachable on the network
  4. Confirm vulnerable component presence
    Since the vulnerability exists in the R7WebsSecurityHandler function of the HTTP Handler, the only definitive check is matching the exact affected firmware version from step 2
    Affected if Running firmware is exactly version 1.0.0.5(2204)

You are affected only if you have a Tenda i9 router running firmware version 1.0.0.5(2204) with its HTTP administration interface accessible on your network.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply vendor firmware update when available; until then, restrict administrative interface access to trusted networks only via firewall rules or VPN, as the exploit is publicly available.

Fix this in I9 Firmware Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA4.0 h
22.0 hours of engineering $3,860
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Scan for this in your stack

Free · runs locally
dbcve dependency scanner

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-7036 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • 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