CVE-2021-30165
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 · uneditedThe default administrator account & password of the EDIMAX wireless network camera is hard-coded. Remote attackers can disassemble firmware to obtain the privileged permission and further control the devices.
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 confidenceEDIMAX wireless network cameras contain a hard-coded default administrator account and password embedded in the firmware. Attackers can extract these credentials by disassembling the firmware binary, enabling remote attackers to gain full administrative access and take control of the affected devices.
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= 3.11CVSS 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
- High
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:H/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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Identify Edimax Ic 3140w devices on your networkScan your network for devices with vendor identifier 'Edimax' and model 'Ic 3140w' using network scanning tools or by reviewing device inventoriesAffected if Any Edimax Ic 3140w camera devices are found on the network
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Check the firmware versionAccess the camera web interface or use SNMP/SSH to retrieve the firmware version. Typically found under System > Firmware Upgrade or via the /proc/version or version endpoints on the deviceAffected if The firmware version is exactly 3.11
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Verify if default admin credentials are activeAttempt to login to the camera admin interface using the known default credentials. Common default combinations for Edimax devices include admin/admin or admin/1234Affected if Default credentials (admin/admin or similar) successfully authenticate to the administrator panel
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Check network exposure of admin interfaceDetermine if the camera admin HTTP/HTTPS ports (typically 80/443) or telnet/SSH are accessible from outside your trusted network segment by reviewing firewall rules and access control listsAffected if The admin interface is reachable from untrusted networks or the internet without VPN or authentication proxy
You are affected if you have Edimax Ic 3140w cameras running firmware version 3.11 with default credentials still enabled and the admin interface exposed to 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 dataImmediately change default credentials on all affected devices if supported, apply available vendor firmware updates, and implement network segmentation to limit exposure to untrusted networks.
- Consultation3.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,880.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-30165 — 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-2021-30165 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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