CVE-2026-8263
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 security flaw has been discovered in Tenda AC6 15.03.06.49_multi_TDE01. Affected is the function fromSetWirelessRepeat of the file /goform/WifiExtraSet of the component httpd. Performing a manipulation of the argument mac/ssid results in os command injection. It is possible to initiate the attack remotely. The exploit has been released to the public and may be used for attacks.
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 confidenceThe Tenda AC6 router firmware 15.03.06.49 contains an OS command injection vulnerability in the httpd web server's /goform/WifiExtraSet endpoint. The fromSetWirelessRepeat function fails to sanitize the mac and ssid arguments before passing them to system shell commands, allowing remote attackers to execute arbitrary operating system commands via crafted HTTP requests.
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= 15.03.06.49_multi_tde01CVSS 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 the Tenda router modelLog into the router web interface or check the device label to confirm the model is AC6 or AC10uAffected if Model is Tenda AC6 or AC10u
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Check the installed firmware versionNavigate to the router's web administration page, look for a System or Firmware Status section, and record the firmware version numberAffected if Firmware version is 15.03.06.49 or falls within the 15.03.06.x series
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Verify the httpd web server is accessibleAttempt to access the router's web interface on the standard HTTP port (typically 80) from an internal network hostAffected if The httpd service is running and responding to HTTP requests on the LAN or WAN interface
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Confirm the WifiExtraSet endpoint existsSend an HTTP POST request to http://[router-ip]/goform/WifiExtraSet or access this URL through the browser to see if the endpoint is presentAffected if The /goform/WifiExtraSet endpoint is available and responds to requests
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Check if wireless repeat/repeater mode is configuredIn the router's web interface, navigate to the Wireless or Wi-Fi settings and look for Repeat, Repeater, or WDS configuration optionsAffected if Wireless repeat or repeater functionality is enabled or configurable on the device
A user is affected if they have a Tenda AC6 or AC10u router running firmware version 15.03.06.49 with the httpd web server accessible and the wireless repeat feature enabled, allowing command injection through the mac or ssid parameters in the WifiExtraSet function.
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 dataUpdate router firmware to a patched version if available; if no patch exists, replace the device or implement network segmentation/firewall rules to restrict access to the router's management interface from untrusted networks.
- Consultation4.0 h
- Implementation6.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-8263 — 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-2026-8263 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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- Version or environment caveats, and links to real fixes
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