CVE-2006-4765
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 · uneditedNETGEAR DG834GT Wireless ADSL router running firmware 1.01.28 allows attackers to cause a denial of service (device hang) via a long string in the username field in the login window.
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 confidenceThe NETGEAR DG834GT router firmware 1.01.28 contains a buffer handling vulnerability in its web-based login authentication mechanism. Sending an excessively long string in the username field triggers a buffer overflow that causes the device to hang, resulting in denial of service.
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= 1.01.28CVSS 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
- Authentication
- None
- Confidentiality
- None
- Integrity
- None
- Availability
- Partial
AV:N/AC:L/Au:N/C:N/I:N/A:P
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 on the router or access the web administration interface and look for the model number (usually displayed on the login page or in the status/firmware information section)Affected if The device is not a NETGEAR DG834GT model - if it is a different model, this specific CVE does not apply
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Check the firmware versionIn the router web interface, navigate to the firmware or status section (often under Maintenance > Router Status or similar) and locate the firmware version fieldAffected if The installed firmware version is exactly 1.01.28 - note that only this specific version is listed as affected
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Confirm web interface is accessibleAttempt to access the router login page by entering the router IP address (commonly 192.168.0.1 or 192.168.1.1) in a web browserAffected if The web interface is accessible and the router responds to HTTP requests - the vulnerability exists in this authentication mechanism
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Verify the authentication function respondsAttempt to access the login page and observe if the username field accepts input - the vulnerability triggers when an excessively long string is sent in this fieldAffected if The login page loads and accepts input in the username field - the vulnerable authentication code path is present
You are affected only if the device is a NETGEAR DG834GT running firmware version 1.01.28 with its web management interface enabled.
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 any available firmware update from NETGEAR that addresses this vulnerability. If no update exists for this older device, consider network segmentation or device replacement to mitigate the DoS risk.
- Consultation2.0 h
- Implementation2.0 h
- Testing2.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2006-4765 — 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-2006-4765 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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