dbcve.org
Ac15 FirmwareOperating system · Tenda

CVE-2026-24103

CRITICAL · 9.8 CVSS v3.1 Published 2026-03-03
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 buffer overflow vulnerability was discovered in goform/formSetMacFilterCfg in Tenda AC15V1.0 V15.03.05.18_multi.

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 confidence

Buffer overflow in the goform/formSetMacFilterCfg endpoint of Tenda AC15 V15.03.05.18 firmware allows remote attackers to potentially execute arbitrary code via malformed MAC filter configuration parameters.

MitigationApply vendor firmware update if available; otherwise, disable remote web management interfaces or restrict administrative access to trusted IP addresses.

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
Ac15 FirmwareOperating system
Affected:= 15.03.05.18_multi

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 device model
    Access the router web interface or check the device label to confirm it is a Tenda AC15 model
    Affected if Device is not a Tenda AC15 unit
  2. Check firmware version
    In the router web interface, navigate to System Settings or Administration > Firmware Upgrade to view the installed firmware version. Compare against 15.03.05.18_multi
    Affected if Firmware version is exactly 15.03.05.18_multi
  3. Verify web management interface is accessible
    Attempt to access the router web interface on its default IP (typically 192.168.0.1) via HTTP or HTTPS
    Affected if Web interface is reachable from the network
  4. Confirm MAC filter configuration endpoint exists
    Check if the router web interface includes MAC filtering settings under Wireless Security or Access Control menus, which would indicate the goform/formSetMacFilterCfg endpoint is present
    Affected if MAC filter feature is present in the web interface

The device is affected if it is a Tenda AC15 running firmware version 15.03.05.18_multi with an accessible web management interface that includes MAC filter configuration capabilities.

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 if available; otherwise, disable remote web management interfaces or restrict administrative access to trusted IP addresses.

Fix this in Ac15 Firmware Scoped from the published advisory
  • Consultation3.0 h
  • Implementation4.0 h
  • Testing2.0 h
  • Review / QA2.0 h
11.0 hours of engineering $1,980
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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-2026-24103 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