CVE-2015-2904
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 · uneditedActiontec GT784WN modems with firmware before NCS01-1.0.13 have hardcoded credentials, which makes it easier for remote attackers to obtain root access by connecting to the web administration interface.
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 confidenceThe Actiontec GT784WN modem contains hardcoded credentials embedded in the firmware of the web administration interface. Attackers can use these credentials to authenticate remotely and gain root-level access to the device, potentially allowing full control of the modem and network traffic interception.
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<= 1.0.12CVSS 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
- Authentication
- None
- Confidentiality
- Complete
- Integrity
- Complete
- Availability
- Complete
AV:A/AC:L/Au:N/C:C/I:C/A:C
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 modelLocate the physical modem/router or check network inventory for Actiontec GT784WN devicesAffected if Device is an Actiontec GT784WN modem
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Determine the firmware versionAccess the web administration interface (typically at 192.168.0.1) and check the firmware version in the system status or firmware upgrade page, or use the AT command interface to query the firmware versionAffected if Firmware version is Ncs01 1.0.12 or earlier
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Verify web administration interface is accessibleAttempt to reach the web interface from the network segment where the device is deployedAffected if Web administration interface responds to HTTP/HTTPS requests
If the device is an Actiontec GT784WN with Ncs01 firmware version 1.0.12 or earlier and its web administration interface is network-accessible, the environment is affected by this hardcoded credentials vulnerability.
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 the Actiontec GT784WN firmware to version NCS01-1.0.13 or later, which removes the hardcoded credentials. If upgrading is not possible, restrict external access to the web administration interface using firewall rules.
- Consultation2.0 h
- Implementation1.0 h
- Testing2.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2015-2904 — 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-2015-2904 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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