Awk 3131a FirmwareOperating system · Moxa

CVE-2016-8717

CRITICAL · 9.8 CVSS v3.1 Published 2018-04-02
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

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 · unedited
An exploitable Use of Hard-coded Credentials vulnerability exists in the Moxa AWK-3131A Wireless Access Point running firmware 1.1. The device operating system contains an undocumented, privileged (root) account with hard-coded credentials, giving attackers full control of affected 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 · high confidence

The Moxa AWK-3131A Wireless Access Point firmware 1.1 contains an undocumented root account with hard-coded credentials embedded in the operating system. Attackers with knowledge of these credentials can authenticate as root and gain full administrative control over the device.

MitigationImmediately change all default/admin credentials on affected devices, update to patched firmware if available, disable remote administrative interfaces or restrict access via firewall, and monitor for unauthorized access.

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
Awk 3131a FirmwareOperating system
Affected:= 1.1

CVSS 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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify device model
    Access the device web interface or check the physical label to confirm the model is Moxa AWK-3131A
    Affected if Device model is Moxa AWK-3131A
  2. Check firmware version
    Log into the device web interface and navigate to System Settings > Firmware or use the command line to retrieve the firmware version
    Affected if Firmware version is exactly 1.1
  3. Verify remote management is enabled
    Check the device network settings to see if the web-based management interface or SSH is enabled and accessible from external networks
    Affected if Remote administrative access is enabled and exposed to untrusted networks
  4. Audit user accounts
    Access the device administration panel and review all configured user accounts for any unknown or undocumented accounts, particularly one with root or administrator privileges
    Affected if An undocumented root or administrator account exists besides those created by the administrator

The device is affected if it is a Moxa AWK-3131A running firmware version 1.1 with the undocumented root account present, regardless of remote access configuration since local access would also expose the hardcoded credentials.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Immediately change all default/admin credentials on affected devices, update to patched firmware if available, disable remote administrative interfaces or restrict access via firewall, and monitor for unauthorized access.

Fix this in Awk 3131a Firmware Scoped from the published advisory
  • Consultation4.0 h
  • Implementation6.0 h
  • Testing2.0 h
  • Review / QA2.0 h
14.0 hours of engineering $2,540
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Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2016-8717 — 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 sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2016-8717 in production — separate from our analysis above.

No notes yet

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What this is

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.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
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