CVE-2023-44022
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 · uneditedTenda AC10U v1.0 US_AC10UV1.0RTL_V15.03.06.49_multi_TDE01 was discovered to contain a stack overflow via the speed_dir parameter in the formSetSpeedWan function.
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 confidenceStack-based buffer overflow in Tenda AC10U v1.0 router firmware US_AC10UV1.0RTL_V15.03.06.49_multi_TDE01. The formSetSpeedWan function fails to validate the length of the speed_dir parameter before copying it to a fixed-size stack buffer, allowing remote attackers to overflow the stack and potentially execute arbitrary code with elevated privileges.
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 router modelLog into the router's web interface and check the device information page, or look for 'Tenda AC10U' label on the device physical chassisAffected if The device is not a Tenda AC10U v1.0 - the CVE does not apply to other models
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Check the firmware versionIn the router web interface, navigate to System Settings > Firmware Upgrade or System Status page and look for the firmware version numberAffected if The firmware version is 15.03.06.49_multi_tde01 exactly - other versions may have different vulnerability status
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Verify remote WAN web access is enabledIn the router web interface, go to Advanced Settings > Remote Management or System Settings > Access Control and check if 'Remote Management' or 'Allow WAN access' is enabledAffected if Remote WAN access to the web interface is enabled - this makes the vulnerable formSetSpeedWan function reachable from the internet
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Confirm the formSetSpeedWan endpoint existsAttempt to access the formSetSpeedWan function via the router's web API endpoint, typically at http://<routerIP>/goform/formSetSpeedWanAffected if The endpoint responds or accepts parameters - indicates the vulnerable function is present and accessible
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Check for signs of exploitationReview router logs for unusual crash events, unexpected processes, or configuration changes to WAN speed settings that were not initiated by youAffected if Unexpected entries in logs related to formSetSpeedWan or unexplained router behavior after the affected firmware version is confirmed
The user is affected if they are running Tenda AC10U v1.0 firmware version 15.03.06.49_multi_tde01 AND the router's web interface is accessible from the WAN side, allowing remote attackers to reach the vulnerable formSetSpeedWan 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 dataApply vendor firmware update when available; otherwise disable remote WAN access to the router's web interface and implement network segmentation to limit exposure. Consider replacing end-of-life router hardware if no patch is forthcoming.
- Consultation3.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA3.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-44022 — 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-2023-44022 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
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