CVE-2023-35991
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 · uneditedHidden functionality vulnerability in LOGITEC wireless LAN routers allows an unauthenticated attacker to log in to the product's certain management console and execute arbitrary OS commands. Affected products and versions are as follows: LAN-W300N/DR all versions, LAN-WH300N/DR all versions, LAN-W300N/P all versions, LAN-WH450N/GP all versions, LAN-WH300AN/DGP all versions, LAN-WH300N/DGP all versions, and LAN-WH300ANDGPE all versions.
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 confidenceThis is a hidden backdoor functionality vulnerability in LOGITEC wireless LAN routers that allows unauthenticated attackers to access the management console and execute arbitrary OS commands. The flaw appears to be an intentional backdoor or undocumented access mechanism present in all versions of the affected models.
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 dataall versionsall versionsall versionsall versionsall versionsall versionsall versionsCVSS 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, web management interface footer, or use network discovery tools to retrieve the model number and firmware versionAffected if The model number matches any of: Elecom Lan Wh300andgpe, Elecom Lan Wh300n/dgp, Elecom Lan Wh300an/dgp, Elecom Lan Wh450n/gp, Elecom Lan W300n/p, Elecom Lan Wh300n/dr, or Elecom Lan W300n/dr
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Verify firmware versionAccess the router web interface and navigate to the status or system information page to view the installed firmware versionAffected if Any firmware version is installed on an affected model (all versions are vulnerable)
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Check management interface accessibilityAttempt to access the router web management interface from the network segment where the device is deployed. Look for the login page or administrative consoleAffected if The management interface is reachable from network segments that contain untrusted or guest users
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Inspect for unknown or undocumented accountsLog into the router administration panel and review the user account list under the management or user settings sectionAffected if Unexpected or undocumented administrator accounts exist beyond those intentionally configured by your organization
You are affected if you have deployed any of the listed Elecom/LOGITEC router models (Wh300andgpe, Wh300n/dgp, Wh300an/dgp, Wh450n/gp, W300n/p, Wh300n/dr, W300n/dr) regardless of firmware version, and the management interface is accessible from 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.
From vendor dataSince all versions are affected and no patch details are provided, organizations should isolate these devices on restricted network segments, disable remote management interfaces if possible, and consider replacing affected routers with updated models from vendors that provide active security support.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2023-35991 — 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-2023-35991 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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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
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