dbcve.org
Ac1206 FirmwareOperating system · Tenda

CVE-2025-4299

CRITICAL · 9.8 CVSS v3.1 Published 2025-05-06
Fix available
A fix is available. Upgrade to after 15.03.06.23 or later.
See remediation →
100/100
Remediation priority · Urgent
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 found in Tenda AC1206 up to 15.03.06.23. It has been rated as critical. This issue affects the function setSchedWifi of the file /goform/openSchedWifi. The manipulation leads to buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may 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 buffer overflow vulnerability exists in the setSchedWifi function within the /goform/openSchedWifi handler of Tenda AC1206 routers (firmware up to 15.03.06.23). The vulnerability allows remote attackers to overflow a buffer, potentially enabling arbitrary code execution or denial of service. The attack is exploitable remotely without authentication.

MitigationApply the vendor-supplied firmware patch when available. Until then, disable remote web management or place the router admin interface behind a VPN/firewall to limit exposure to untrusted networks.

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
Ac1206 FirmwareOperating system
Affected:<= 15.03.06.23

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. Confirm Tenda AC1206 model
    Access the router admin interface (typically http://192.168.0.1) and look for the device model name in the status or system settings page
    Affected if The device is not a Tenda AC1206, then it is not affected by this specific CVE
  2. Check firmware version
    In the router admin interface, navigate to System Settings or Administration and locate the firmware version information
    Affected if Firmware version is 15.03.06.23 or lower, indicating the device may be vulnerable
  3. Verify web interface accessibility
    Attempt to access the router's web interface on the default HTTP port (port 80) from the local network
    Affected if The web interface is reachable, exposing the vulnerable /goform/openSchedWifi endpoint
  4. Confirm vulnerable endpoint exists
    Send an HTTP GET or POST request to http://[router-ip]/goform/openSchedWifi and observe the response
    Affected if The endpoint responds (even with an error), indicating the vulnerable function exists in the firmware

You are affected if you have a Tenda AC1206 router with firmware version 15.03.06.23 or lower and its web management interface is accessible from 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.

dbcve · scoped
Upgrade available Upgrade to a release after 15.03.06.23
Interim mitigation

Apply the vendor-supplied firmware patch when available. Until then, disable remote web management or place the router admin interface behind a VPN/firewall to limit exposure to untrusted networks.

Recommended fix Moderate confidence

Latest AC1206 firmware version available from Tenda official support (check www.tenda.com.cn for version newer than 15.03.06.23)

  1. Check Tenda's official support page (www.tenda.com.cn) for the latest AC1206 firmware version
  2. Download the latest available firmware version for the AC1206 router
  3. Access the router's web management interface (typically at 192.168.0.1)
  4. Navigate to the firmware upgrade or system settings section
  5. Upload and apply the new firmware version
  6. After reboot, verify the router is running the updated firmware
  7. Confirm the new version is newer than 15.03.06.23 and includes the security fix
Caveat Firmware upgrades may reset router configuration; backup current settings before upgrading

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Ac1206 Firmware Scoped from the published advisory
  • Consultation2.0 h
  • Implementation1.0 h
  • Testing2.0 h
  • Review / QA1.0 h
6.0 hours of engineering $1,060
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,696.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2025-4299 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

Get it on GitHub Scan in the browser

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-2025-4299 in production — separate from our analysis above.

No notes yet

Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.

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