CVE-2024-5295
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 G416 flupl self Command Injection Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link G416 wireless routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the HTTP service listening on TCP port 80. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-21294.
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 confidenceUnauthenticated command injection in the D-Link G416 router's HTTP service (TCP port 80) via the 'flupl' function. The vulnerability stems from improper validation of user-supplied input before passing it to a system call, enabling remote attackers to execute arbitrary code with root privileges.
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< 1.09b01CVSS 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.
-
Confirm device model is D-Link G416Access the router web interface or check the device label/marketing to verify the model is G416Affected if The device is not a D-Link G416 router (different models may have different vulnerabilities)
-
Check installed firmware versionLog into the router web interface and navigate to the Status or System Information page to view the firmware version, or check via CLI if availableAffected if Firmware version is below 1.09b01 (e.g., 1.08, 1.07, etc.)
-
Verify HTTP service is listening on port 80Use a network scanner or run 'nc -zv <router_ip> 80' or 'nmap -p 80 <router_ip>' from a connected host to test TCP port 80 connectivityAffected if TCP port 80 is open and responding to HTTP requests
-
Confirm 'flupl' function is accessibleSend an HTTP request to the 'flupl' endpoint (e.g., GET /flupl or similar path) on the router's IP to see if it accepts input without authenticationAffected if The 'flupl' function accepts unauthenticated requests and processes input without proper validation
-
Check for signs of compromiseReview router logs for unexpected commands, check for new user accounts or modified configurations, look for unfamiliar processes in the systemAffected if Logs show suspicious commands, unexpected configuration changes, or evidence of unauthorized root-level execution
You are affected if the device is a D-Link G416 router running firmware version prior to 1.09b01 with the HTTP service (port 80) exposed and the 'flupl' function accepting unauthenticated input.
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 · scoped1.09b01
Apply vendor-supplied firmware patch when available; until then, restrict administrative interface access to trusted networks or disable remote HTTP management.
Firmware 1.09b01 or later
- 1. Identify the exact model number (G416) of the D-Link router
- 2. Navigate to the official D-Link support website (www.dlink.com or support.dlink.com)
- 3. Search for the G416 product page and locate the firmware download section
- 4. Download the firmware version 1.09b01 or latest available version
- 5. Access the router's web management interface (typically at http://192.168.0.1 or http://192.168.1.1)
- 6. Navigate to the Administration or System Settings section
- 7. Locate the firmware upgrade option and upload the downloaded firmware file
- 8. Wait for the upgrade process to complete - do not power off the router during this process
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation8.0 h
- Implementation12.0 h
- Testing6.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $8,608.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-5295 — 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-2024-5295 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