CVE-2025-12944
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 · uneditedImproper input validation in NETGEAR DGN2200v4 (N300 Wireless ADSL2+ Modem Router) allows attackers with direct network access to the device to potentially execute code on the device. Please check the firmware version and update to the latest. Fixed in: DGN2200v4 firmware 1.0.0.132 or later
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 NETGEAR DGN2200v4 router contains an improper input validation vulnerability that allows attackers with direct network access to the device to execute arbitrary code. This is a classic input validation flaw likely in a web interface parameter or API endpoint that does not properly sanitize user-supplied data before processing it.
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< 1.0.0.132CVSS 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
- Adjacent
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:A/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.
-
Check the router firmware versionLog into the router web interface (typically at 192.168.1.1) and navigate to Administration > Firmware Update or Router Status page. Locate the firmware version field.Affected if The displayed firmware version is lower than 1.0.0.132 (for example, 1.0.0.120, 1.0.0.100, etc.)
-
Verify the web management interface is reachableAttempt to access the router login page from a browser using the router's IP address (default: 192.168.1.1). Confirm the page loads successfully.Affected if The web interface is accessible, indicating the attack surface exists
-
Identify network exposure of management interfaceCheck router firewall settings or external access configuration. Determine if remote management or web interface access is enabled for interfaces outside the local network.Affected if Remote management or WAN access to the web interface is enabled, expanding the attack vector to untrusted networks
-
Review router logs for suspicious requestsAccess the router logs or system logs through the web interface (usually under Administration > Logs or Advanced > Management). Look for unexpected API calls, unusual parameter patterns, or repeated failed authentication attempts.Affected if Logs show anomalous requests with long parameter strings, unexpected API calls, or evidence of scanning activity targeting the web interface
The device is affected if the installed firmware version is below 1.0.0.132 and the router web interface is accessible from a network where untrusted actors could send requests directly to the device.
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 · scoped1.0.0.132
Update the router firmware to version 1.0.0.132 or later. If immediate patching is not possible, restrict network access to the router's management interface using firewall rules or ACLs to limit exposure to trusted networks.
DGN2200v4 firmware 1.0.0.132
- Log in to the NETGEAR DGN2200v4 router web interface (typically at http://192.168.0.1 or http://routerlogin.net)
- Navigate to the Administration or Router Update section to check the current firmware version
- Confirm the firmware version is below 1.0.0.132
- Download the latest firmware version 1.0.0.132 or later from the official NETGEAR support site (kb.netgear.com or www.netgear.com/support)
- In the router's web interface, use the Firmware Update option to upload and install the downloaded firmware file
- Wait for the firmware update to complete (do not power off the router during this process)
- After the router reboots, log back into the web interface and verify the firmware version now shows 1.0.0.132 or later
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation1.0 h
- Testing1.0 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 $1,456.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-12944 — 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-2025-12944 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