CVE-2017-14515
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 · uneditedHeap-based Buffer Overflow on Tenda W15E devices before 15.11.0.14 allows remote attackers to cause a denial of service (temporary HTTP outage and forced logout) via unspecified vectors.
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 heap-based buffer overflow vulnerability exists in Tenda W15E routers prior to firmware version 15.11.0.14. The vulnerability is remotely exploitable without authentication and allows attackers to trigger a denial of service condition, causing temporary HTTP service outage and forced logout of active users.
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<= v15.11.0.13_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
- None
- Integrity
- None
- Availability
- High
CVSS:3.0/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 device modelAccess the router web interface and look for the device model name on the status or system info page, or check the device label/marking on the hardware unit itself.Affected if Device is not a Tenda W15E router (not affected)
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Check firmware version via web interfaceLog into the router admin panel (typically at 192.168.0.1) and navigate to System Status or Firmware Version page. Look for the firmware version string displayed.Affected if Firmware version displayed is v15.11.0.13_cn or earlier (v15.11.0.14 and later are not affected)
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Check firmware version via HTTP response headersSend an HTTP request to the router's web interface (port 80) and inspect the Server header or any version-related headers in the response.Affected if Version in response headers indicates v15.11.0.13_cn or earlier
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Verify remote HTTP management is accessibleAttempt to access the router's HTTP interface from an external network (outside LAN) using the public IP address on port 80 or 8080.Affected if HTTP management interface is exposed to untrusted networks (the vulnerability is remotely exploitable without authentication)
A Tenda W15E router is affected if it is running firmware version 15.11.0.13_cn or earlier, especially if its HTTP management interface is accessible from untrusted networks.
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 dataUpgrade Tenda W15E firmware to version 15.11.0.14 or later. If immediate patching is not feasible, restrict network access to the device's management interface using firewall rules or ACLs.
- Consultation2.0 h
- Implementation2.0 h
- Testing1.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2017-14515 — 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-2017-14515 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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