CVE-2023-32222
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 · uneditedD-Link DSL-G256DG version vBZ_1.00.27 web management interface allows authentication bypass via an unspecified method.
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 confidenceD-Link DSL-G256DG router running firmware version vBZ_1.00.27 contains an authentication bypass vulnerability in its web management interface. The CVSS 9.8 score indicates this is a network-exploitable, low-complexity flaw requiring no privileges or user interaction to exploit, allowing remote attackers to bypass authentication and gain administrative access to the device.
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= bz_1.00.27CVSS 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
- 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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Confirm device model is D-Link DSL-G256DGLog into the router web interface and check the device information page, or check the device label/marketing materials for the exact model number.Affected if The device is NOT a D-Link DSL-G256DG router - different models are not affected by this specific CVE.
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Check the installed firmware versionIn the router web interface, navigate to Status or System Info page and locate the firmware version field. Alternatively, check the upgrade page or use the router's diagnostic functions to retrieve the firmware build number.Affected if The firmware version is NOT bz_1.00.27 - only this specific version is affected. Other versions may have different vulnerability status.
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Verify remote web management is enabledIn the router web interface, go to the Remote Management, Administration, or Access Control settings section. Look for options like 'Enable Remote Management', 'Remote Admin Access', or 'Web Management Remote Access'. Check if a remote IP address or 'WAN' interface is permitted for management access.Affected if Remote web management is DISABLED - the vulnerability is only exploitable if the management interface is accessible from the WAN (internet) side. If remote access is restricted to LAN only, the attack surface is significantly reduced.
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Confirm network exposure of management interfaceAttempt to access the router's web interface from an external network by entering the public IP address. Use network scanning tools (such as nmap) from outside the local network to check if ports 80, 443, or 8080 are open on the WAN IP.Affected if The router's web management interface is DIRECTLY ACCESSIBLE from the internet - this is the condition that makes exploitation possible.
You are affected if you have a D-Link DSL-G256DG router running firmware version bz_1.00.27 with remote web management enabled and the management interface exposed to an untrusted 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 dataApply vendor-supplied firmware patch when available; until then, disable remote web management, place device behind a firewall, and restrict management interface access to trusted IPs only.
- Consultation4.0 h
- Implementation4.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-32222 — 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-2023-32222 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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