CVE-2020-13135
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 DSP-W215 1.26b03 devices allow information disclosure by intercepting messages on the local network, as demonstrated by a Squid Proxy.
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 confidenceThe D-Link DSP-W215 smart plug firmware transmits data without adequate encryption or authentication on the local network, allowing an attacker with man-in-the-middle position to intercept and read sensitive information. The vulnerability is demonstrated using a Squid Proxy to intercept traffic between the device and its cloud backend.
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= 1.26b03CVSS 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
- None
- Availability
- None
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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 the device modelLog into the device's web interface or check the physical device label to confirm the model is D-Link DSP-W215Affected if The device model is D-Link DSP-W215
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Check the firmware versionAccess the device's web interface and navigate to the Status or System Information page to view the firmware version. Alternatively, check the release notes or firmware file metadata if you have the firmware file.Affected if The firmware version is exactly 1.26b03
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Verify network connectivityConfirm the device is connected to your local network and has active communication with its cloud backend. Check the device status page for network connection status.Affected if The device is connected to the network and actively communicating with external servers
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Capture local network trafficUse a network sniffer (such as Wireshark or tcpdump) on the same network segment as the device to capture traffic from the device's IP address. Look for unencrypted HTTP traffic transmitting sensitive data.Affected if The device sends sensitive information (such as authentication tokens, device identifiers, or configuration data) over unencrypted HTTP instead of HTTPS
You are affected if you have a D-Link DSP-W215 device running firmware version 1.26b03 that transmits sensitive data over unencrypted local network traffic.
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 dataNetwork segmentation (VLAN isolation) can limit exposure; replace affected devices if no firmware patch is available; monitor local network traffic for anomalies.
- Consultation4.0 h
- Implementation2.0 h
- Testing6.0 h
- Review / QA3.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-13135 — 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-2020-13135 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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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