CVE-2024-28640
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 · uneditedBuffer Overflow vulnerability in TOTOLink X5000R V9.1.0u.6118-B20201102 and A7000R V9.1.0u.6115-B20201022 allows a remote attacker to cause a denial of service (D0S) via the command field.
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 confidenceA buffer overflow vulnerability exists in the command field processing of TOTOLink X5000R (firmware V9.1.0u.6118-B20201102) and A7000R (firmware V9.1.0u.6115-B20201022) routers. Remote attackers can send specially crafted input exceeding expected buffer boundaries, causing the device to crash or become unresponsive, 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= 9.1.0u.6118_b20201102= 9.1.0u.6115_b20201022CVSS 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
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/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 modelAccess the router admin interface or check the device label to confirm the model is TOTOLink X5000R or A7000RAffected if Model is not X5000R or A7000R - not affected by this specific CVE
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Check installed firmware versionLog into the router web interface, navigate to System Status or Firmware Upgrade page, and record the displayed firmware version stringAffected if Firmware version is exactly 9.1.0u.6118_b20201102 (X5000R) or 9.1.0u.6115_b20201022 (A7000R)
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Verify command field processing is accessibleLocate the command execution or diagnostic field in the router web interface (often under System Tools, Diagnostics, or Command execution features)Affected if The command field feature is present and accessible to unauthenticated or low-privilege users
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Check for crash or instability indicatorsReview router system logs for recent crashes, reboots, or denial of service events; check if the device becomes unresponsive after sending oversized input to any command fieldAffected if Device shows recent unexplained crashes or unresponsiveness correlating with command field access
The device is affected if it is a TOTOLink X5000R or A7000R running the exact vulnerable firmware versions (9.1.0u.6118_b20201102 or 9.1.0u.6115_b20201022) and the command field processing feature is accessible.
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 patches when available. If no patch exists, restrict network access to the router's management interfaces using firewall rules or ACLs, and consider replacing affected devices.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-28640 — 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-2024-28640 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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