CVE-2025-14535
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 vulnerability was identified in UTT 进取 512W up to 3.1.7.7-171114. Affected is the function strcpy of the file /goform/formConfigFastDirectionW. The manipulation of the argument ssid leads to buffer overflow. The attack may be initiated remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
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 confidenceBuffer overflow in UTT 进取 512W router firmware (up to 3.1.7.7-171114) in the /goform/formConfigFastDirectionW handler. The strcpy function copies the ssid parameter into a fixed-size buffer without bounds checking, allowing remote pre-authentication attackers to overflow the buffer and potentially execute arbitrary code. The exploit is publicly available.
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<= 1.7.7-171114CVSS 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 modelCheck the device label or access the router's web management interface and look for the model number (512W or 进取 512W) in the device info or status pageAffected if The device is a UTT 进取 512W router
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Check the firmware versionIn the router's web interface, navigate to System Status or Firmware Upgrade page to view the firmware version. Alternatively, check the firmware file name if you have access to the firmware binaryAffected if Firmware version is 1.7.7-171114 or earlier
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Verify the vulnerable endpoint is presentAttempt to access the URL path /goform/formConfigFastDirectionW on the router's web interface (e.g., http://<router-ip>/goform/formConfigFastDirectionW)Affected if The endpoint responds (returns any page or error message, indicating the handler exists)
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Confirm web management is exposedVerify that the router's HTTP/HTTPS management interface is accessible from the network by attempting to reach the router's IP on ports 80/443Affected if The web interface is reachable from an untrusted network segment
A user is affected if they have a UTT 进取 512W router running firmware version 1.7.7-171114 or earlier with the web management interface accessible on the network.
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 dataSince the vendor has not responded to disclosures, no firmware patch is available. Implement network segmentation and firewall rules to restrict access to the router's management interface to trusted IPs only, or replace the device with a supported model from a vendor that provides security updates.
- Consultation4.0 h
- Implementation2.0 h
- Testing2.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2025-14535 — 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-2025-14535 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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