CVE-2012-1250
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 · uneditedLogitec LAN-W300N/R routers with firmware before 2.27 do not properly restrict login access, which allows remote attackers to obtain administrative privileges and modify settings via vectors related to PPPoE authentication.
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 Logitec LAN-W300N/R router firmware before version 2.27 contains an authentication bypass vulnerability related to PPPoE authentication that allows remote attackers to gain full administrative privileges without valid credentials, enabling complete router settings modification.
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< 2.27CVSS 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
- Complete
- Integrity
- Complete
- Availability
- Complete
AV:N/AC:L/Au:N/C:C/I:C/A:C
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.
-
Identify router modelCheck the device label or web admin interface to confirm the model is Logitec LAN-W300N or LAN-W300N/RU2Affected if Model is not LAN-W300N or LAN-W300N/RU2 (not affected)
-
Check firmware versionAccess the router web admin interface (typically at 192.168.1.1) and navigate to Status or System Information page to view the firmware versionAffected if Firmware version is below 2.27 (vulnerable)
-
Verify PPPoE configurationIn the router web admin interface, navigate to WAN or PPPoE settings to determine if PPPoE authentication is enabled or configurableAffected if PPPoE is enabled or accessible on the WAN interface (exposes the vulnerable authentication mechanism)
You are affected if you have a Logitec LAN-W300N/R router running firmware version below 2.27 with PPPoE functionality accessible on your 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.
dbcve · scoped2.27
Upgrade router firmware to version 2.27 or later. If immediate patching is not possible, restrict network access to the router's management interface using firewall rules or network segmentation to prevent unauthorized external access.
Firmware version 2.27
- Access the router's web administration interface by entering the router's IP address in a web browser
- Navigate to the firmware upgrade or system settings section in the admin panel
- Download firmware version 2.27 or later from the official Logitec support website (www.logitec.co.jp)
- Upload the firmware file through the router's web interface and initiate the update
- Wait for the firmware to be applied and the router to reboot
- Verify the firmware version has been updated to 2.27 or later after reboot
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation1.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,696.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2012-1250 — 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-2012-1250 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- 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