CVE-2025-25523
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 · uneditedBuffer overflow vulnerability in Trendnet TEG-40128 Web Smart Switch v1(1.00.023) due to the lack of length verification, which is related to the mobile access point setup operation. The attacker can directly control the remote target device by successfully exploiting this vulnerability.
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 confidenceBuffer overflow vulnerability in Trendnet TEG-40128 Web Smart Switch firmware v1.00.023 exists due to missing length validation in the mobile access point setup operation. An unauthenticated attacker can exploit this to execute arbitrary code and gain full device control.
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= 1.00.023CVSS 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
- Local
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
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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Confirm device model is Trendnet TEG-40128Access the switch web interface or check the device label/management console to verify the exact model number.Affected if The device is not a Trendnet TEG-40128 switch.
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Check installed firmware versionLog into the switch web interface and navigate to the System or Administration section to view the firmware version. Alternatively, use SNMP or the device console if web UI is unavailable.Affected if The firmware version is 1.00.023.
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Verify mobile access point setup feature statusIn the web interface, locate the mobile access point setup or wireless/AP configuration section. Check if this feature is present and enabled in the device settings.Affected if The mobile access point setup feature exists and is accessible on the device.
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Assess network exposure of management interfaceDetermine if the device management web interface (typically HTTP/HTTPS on ports 80/443 or custom ports) is reachable from untrusted networks. Check router/firewall rules and device network configuration.Affected if The management interface is directly accessible from untrusted networks without network segmentation.
The device is affected only if it is a Trendnet TEG-40128 switch running firmware version 1.00.023 with the mobile access point setup feature present and the management interface exposed to untrusted networks.
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, isolate the device management interface from untrusted networks and disable unused services.
- Consultation3.0 h
- Implementation6.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-25523 — 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-2025-25523 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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