CVE-2026-52188
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 UTT nv518G nv518GV3v3.2.7-210919-161313 allows a remote attacker to cause a denial of service via the gohead//sub_497498 component
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 confidenceA buffer overflow vulnerability exists in the gohead//sub_497498 component of UTT nv518G routers running firmware v3.2.7-210919-161313. A remote attacker can exploit this to cause denial of service.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS 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
- Adjacent
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/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 device modelLog into the router admin interface or check the device label to confirm the model is UTT nv518GAffected if The device is not a UTT nv518G router - different models are not affected by this specific CVE
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Check the installed firmware versionAccess the router web interface (typically at 192.168.1.1) and navigate to Status or System Info page to view the firmware version, or use the command 'cat /proc/version' or 'nvram get firmware_version' via telnet/ssh if availableAffected if The firmware version matches v3.2.7-210919-161313 exactly - this is the vulnerable version
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Verify the gohead service is runningCheck if the gohead service/process is active on the device via telnet/ssh using 'ps | grep gohead' or by inspecting running services in the router admin interfaceAffected if The gohead process is running - this is the component containing the vulnerable sub_497498 function
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Check if remote management is enabledAccess the router web interface and look for Remote Management, WAN Access, or Administration settings to determine if external/network access to the router management interface is permittedAffected if Remote management or WAN access is enabled, as this provides the attack vector for remote exploitation
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Look for crash logs or unexpected rebootsCheck the router system logs (usually via Status > Logs or /var/log/messages) for signs of crashes, buffer overflow indicators, or unexpected restarts occurring around the time of potential exploitationAffected if There are repeated crash logs, memory corruption indicators, or unexplained reboots which may indicate exploitation attempts
A user is affected if they have a UTT nv518G router running firmware v3.2.7-210919-161313 with the gohead service enabled and accessible to a remote attacker.
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, restrict network access to the device or isolate it in a protected network segment.
- Consultation4.0 h
- Implementation2.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,152.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-52188 — 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-2026-52188 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
- No spam, self-promotion, credentials, or personal data