CVE-2016-5668
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 · uneditedCrestron Electronics DM-TXRX-100-STR devices with firmware before 1.3039.00040 allow remote attackers to bypass authentication and change settings via a JSON API call.
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 confidenceCrestron DM-TXRX-100-STR devices with firmware before 1.3039.00040 contain an authentication bypass vulnerability in their JSON API interface. Remote attackers can send specially crafted JSON API calls to change device settings without any authentication credentials, gaining full control over the device.
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= 1.2866.00026CVSS 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:3.0/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 checksWork through these to decide whether this CVE applies to you.
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Identify the device modelAccess the device web interface or check the device label/metadata to confirm the exact model is Crestron DM-TXRX-100-STRAffected if The device is NOT a Crestron DM-TXRX-100-STR model
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Check the installed firmware versionNavigate to the device web interface Settings or System Info page, or query the device status API endpoint, to retrieve the firmware version stringAffected if The firmware version is 1.2866.00026 (the specific affected version listed)
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Determine if the JSON API interface is enabledLocate the device network settings or API configuration section in the web interface, or attempt to access the JSON API endpoint (typically at /api or similar)Affected if The JSON API interface is exposed and accessible on the network
You are affected if you have a Crestron DM-TXRX-100-STR device running firmware version 1.2866.00026 with the JSON API interface accessible on the network.
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.
dbcve · scopedUpgrade affected devices to firmware version 1.3039.00040 or later. Until patched, isolate these devices on a restricted network segment and disable unauthenticated API access if possible.
1.3039.00040 or later
- Identify the current firmware version of the DM-TXRX-100-STR device
- Obtain firmware version 1.3039.00040 or later from Crestron Electronics
- Apply the firmware update to the DM-TXRX-100-STR device following Crestron's standard update procedure
- Verify the device is running firmware version 1.3039.00040 or later
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation2.0 h
- Testing4.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,392.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2016-5668 — 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-2016-5668 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