CVE-2025-4452
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 · uneditedA vulnerability was found in D-Link DIR-619L 2.04B04 and classified as critical. Affected by this issue is the function formSetWizard2. The manipulation of the argument curTime leads to buffer overflow. The attack may be launched remotely. The vendor was contacted early about this disclosure. This vulnerability only affects products that are no longer supported by the maintainer.
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 confidenceBuffer overflow vulnerability in D-Link DIR-619L firmware 2.04B04 in the formSetWizard2 function allows remote attackers to overflow the curTime argument, potentially enabling arbitrary code execution or 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= 2.04b04CVSS 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 or log into the router web interface and look for the model number in the status or system information pageAffected if The device is NOT a D-Link DIR-619L, then it is not affected by this specific CVE
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Check the firmware versionLog into the router web interface and navigate to the Status or System section to view the firmware version, or check via CLI if availableAffected if The firmware version is NOT 2.04B04 (exact match required), then it is not affected
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Verify the web management interface is enabledCheck if the router HTTP/HTTPS web interface is accessible on the local network or remotelyAffected if The formSetWizard2 function is part of the web interface; if the web interface is completely disabled, the attack surface is reduced (though the vulnerable code may still be present)
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Inspect the web server binaries (advanced)If you have access to the firmware image or can extract it, look for the formSetWizard2 function in the httpd or web server binaryAffected if The vulnerable function exists in the web server binary at firmware version 2.04B04, confirming the device is affected if the web interface is accessible
You are affected if you have a D-Link DIR-619L router running firmware version 2.04B04 with the web management interface enabled, as the buffer overflow vulnerability resides in the formSetWizard2 function handling the curTime argument.
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 the product is End-of-Life and unpatched, replace with a currently supported device or implement strict network segmentation/firewall rules to limit exposure to trusted users only.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2025-4452 — 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-2025-4452 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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- Version or environment caveats, and links to real fixes
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