F5d7230 4Hardware / appliance · Belkin

CVE-2005-3802

MEDIUM · 5.1 CVSS v2.0 Published 2005-11-24
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
60/100
Remediation priority · Elevated
Remotely reachable No privileges Zero-click

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 · unedited
Belkin F5D7232-4 and F5D7230-4 wireless routers with firmware 4.03.03 and 4.05.03, when a legitimate administrator is logged into the web management interface, allow remote attackers to access the management interface without 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 · moderate confidence

Belkin F5D7232-4 and F5D7230-4 wireless routers with firmware versions 4.03.03 and 4.05.03 contain an authentication bypass vulnerability where remote attackers can access the web management interface without credentials when a legitimate administrator session is active. This indicates improper session state management or failure to enforce authentication checks on subsequent requests.

MitigationSince these are legacy routers from 2005, check for available firmware updates from Belkin; if unavailable, replace with a current supported router. Additionally, disable remote web management if not required and restrict management interface access to trusted IP addresses via network segmentation.

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
F5d7230 4Hardware / appliance
Affected:= 4.3.3= 4.5.3
F5d7232 4Hardware / appliance
Affected:= 4.3.3= 4.5.3

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
Network
Complexity
High
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial

AV:N/AC:H/Au:N/C:P/I:P/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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify router model
    Check the product label on the bottom of the Belkin router or access the web interface and locate the model number. Confirm it is either F5D7230-4 or F5D7232-4.
    Affected if Model is F5D7230-4 or F5D7232-4
  2. Check firmware version
    Log into the router web interface as administrator, navigate to the Status or Firmware Upgrade page, and record the firmware version number displayed.
    Affected if Firmware version is 4.03.03 or 4.05.03
  3. Verify remote web management is accessible
    In the router web interface, go to the Administration or Security settings and check if Remote Management (often labeled as 'Web Management' or 'Remote Administration') is enabled. If enabled, try accessing the router login page from an external IP address to confirm it responds.
    Affected if Remote web management is enabled and reachable from untrusted networks

You are affected if you have a Belkin F5D7230-4 or F5D7232-4 router running firmware 4.03.03 or 4.05.03 with the remote web management interface enabled and accessible.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Since these are legacy routers from 2005, check for available firmware updates from Belkin; if unavailable, replace with a current supported router. Additionally, disable remote web management if not required and restrict management interface access to trusted IP addresses via network segmentation.

Fix this in F5d7230 4 Scoped from the published advisory
  • Consultation2.0 h
  • Implementation2.0 h
  • Testing1.0 h
  • Review / QA1.0 h
6.0 hours of engineering $1,090
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Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2005-3802 — 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 sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2005-3802 in production — separate from our analysis above.

No notes yet

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What this is

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.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
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