CVE-2024-40515
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 · uneditedAn issue in SHENZHEN TENDA TECHNOLOGY CO.,LTD Tenda AX2pro V16.03.29.48_cn allows a remote attacker to execute arbitrary code via the Routing functionality.
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 critical remote code execution vulnerability exists in the Tenda AX2pro router firmware (V16.03.29.48_cn) within the Routing functionality. The flaw allows an unauthenticated remote attacker to execute arbitrary commands on the device, potentially leading to full device compromise and network infiltration.
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= 16.03.29.48_cnCVSS 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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Confirm device model is Tenda AX2 ProLocate the router physical label or access the web admin interface (typically http://192.168.0.1) and check the device model name in the system status or device info pageAffected if The device model is not Tenda AX2 Pro, this CVE does not apply
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Check installed firmware versionIn the router web admin interface, navigate to System Settings > Firmware Upgrade or System Status to view the current firmware version. Alternatively, access via telnet if enabled and run 'cat /proc/version' or check /etc/versionAffected if The firmware version shown is 16.03.29.48_cn exactly
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Verify the vulnerable Routing feature is accessibleCheck if the router has remote management or WAN-facing routing services enabled. Look for settings under Advanced > Routing or WAN settings in the admin interface, and determine if these services are accessible from the WAN interfaceAffected if The Routing functionality is enabled and exposed to unauthenticated network access (particularly from WAN)
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Confirm no external network access to router admin interfaceAttempt to access the router admin interface from an external network (WAN side) or check firewall/NAT rules that might allow external access to the router's web interface on ports 80/443Affected if The router admin or routing services are exposed directly to the internet without authentication barriers
A user is affected if they are running Tenda AX2 Pro firmware version exactly 16.03.29.48_cn AND the Routing functionality is accessible (especially from WAN), allowing unauthenticated attackers to execute commands remotely.
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 dataCheck Tenda support for firmware updates; if unavailable, isolate the device on a restricted network segment or replace with a actively supported device.
- Consultation4.0 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 $5,120.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-40515 — 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-2024-40515 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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