CVE-2025-44899
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 · uneditedThere is a stack overflow vulnerability in Tenda RX3 V1.0br_V16.03.13.11 In the fromSetWifiGusetBasic function of the web url /goform/ WifiGuestSet, the manipulation of the parameter shareSpeed leads to stack overflow.
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 confidenceA stack-based buffer overflow vulnerability exists in the Tenda RX3 router's web interface (firmware V1.0br_V16.03.13.11). The fromSetWifiGusetBasic function at /goform/WifiGuestSet fails to properly validate the length of the shareSpeed parameter before copying it to a stack buffer, allowing an attacker to overwrite return addresses and potentially achieve remote code execution.
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= 16.03.13.11_multiCVSS 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 firmware versionLog into the router web interface and navigate to System Management > Firmware Upgrade, or check the version label on the device. Alternatively, query the router's /goform/getSysInfo endpoint or check the HTTP headers on responses.Affected if The firmware version is exactly V1.0br_V16.03.13.11_multi (the only affected version listed).
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Confirm guest Wi-Fi is enabledLog into the router web interface and navigate to Wi-Fi Settings > Guest Wi-Fi. Check whether the guest network is turned on.Affected if The guest Wi-Fi feature is enabled, as the vulnerable function fromSetWifiGusetBasic processes parameters for the guest network.
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Verify web interface accessibilityAttempt to access the router's web interface at port 80 or 443 from an untrusted network. Check if remote management is enabled under System Management > Remote Management.Affected if The /goform/WifiGuestSet endpoint is reachable from an attacker-controlled network, allowing the overflow to be triggered via the shareSpeed parameter.
You are affected if your Tenda RX3 runs firmware V1.0br_V16.03.13.11_multi AND the guest Wi-Fi feature is enabled AND the router web interface is accessible to untrusted users.
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 patch when available; until then, disable the guest Wi-Fi feature or restrict administrative access to trusted IPs to reduce attack surface.
- Consultation3.0 h
- Implementation6.0 h
- Testing5.0 h
- Review / QA3.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2025-44899 — 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-2025-44899 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
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- Version or environment caveats, and links to real fixes
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