CVE-2024-51003
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 · uneditedNetgear R8500 v1.0.2.160, XR300 v1.0.3.78, R7000P v1.3.3.154, and R6400 v2 1.0.4.128 were discovered to multiple stack overflow vulnerabilities in the component ap_mode.cgi via the apmode_dns1_pri and apmode_dns1_sec parameters. These vulnerabilities allow attackers to cause a Denial of Service (DoS) via a crafted POST request.
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 confidenceStack overflow vulnerability in Netgear router web interface (ap_mode.cgi) where the apmode_dns1_pri and apmode_dns1_sec parameters are not properly bounds-checked before use in stack memory operations. Attackers can trigger the overflow by sending crafted POST requests with excessively long DNS parameter values, causing the device to crash and resulting in 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= 1.0.2.160= 1.0.3.78= 1.3.3.154= 1.0.4.128CVSS 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/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 router modelCheck the device label or access the router admin page to confirm the exact model (R8500, Xr300, R7000p, or R6400v2).Affected if Model is one of the four affected models.
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Check firmware versionLog into the router web interface, navigate to the firmware version or status page, and record the installed firmware version number.Affected if Firmware version exactly matches 1.0.2.160 (R8500), 1.0.3.78 (Xr300), 1.3.3.154 (R7000p), or 1.0.4.128 (R6400v2).
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Verify ap_mode functionality statusAccess the router web interface and look for AP mode, wireless access point settings, or ap_mode related configuration pages. Check if ap_mode is currently enabled or configurable.Affected if ap_mode functionality is present and can be configured on the device.
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Confirm web interface accessibilityAttempt to access the router login page via HTTP/HTTPS at the router LAN IP address (typically 192.168.1.1).Affected if The web management interface is reachable from the network.
You are affected if you own one of the four specific Netgear models (R8500, Xr300, R7000p, R6400v2) running the exact firmware versions listed AND the router web interface is accessible with ap_mode functionality present.
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 firmware updates when available. Until patched, restrict access to the router's web management interface to trusted networks or disable the ap_mode functionality if not required.
- Consultation2.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,480.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-51003 — 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-2024-51003 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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