CVE-2017-16274
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 · uneditedMultiple exploitable buffer overflow vulnerabilities exist in the PubNub message handler for the "cc" channel of Insteon Hub running firmware version 1012. Specially crafted commands sent through the PubNub service can cause a stack-based buffer overflow overwriting arbitrary data. An attacker should send an authenticated HTTP request to trigger this vulnerability. In cmd e_u, at 0x9d017364, the value for the `grp` key is copied using `strcpy` to the buffer at `$sp+0x1b4`.This buffer is 8 bytes large, sending anything longer will cause a buffer overflow.
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 confidenceStack-based buffer overflow in Insteon Hub firmware 1012's PubNub message handler for the 'cc' channel. The 'grp' key value from PubNub commands is copied using unsafe strcpy into an 8-byte buffer at stack position $sp+0x1b4, allowing overflow and potential arbitrary code execution by authenticated attackers.
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= 1012CVSS 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
- Low
- User interaction
- None
- Scope
- Changed
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/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 modelConfirm the device is an Insteon Hub by checking the device label, web interface, or documentationAffected if The device is not an Insteon Hub, this CVE does not apply
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Check the firmware versionAccess the Insteon Hub web interface (typically at 192.168.1.x or via the Insteon app) and navigate to Settings or About to view the firmware version. The affected version is exactly 1012.Affected if Firmware version is 1012 - this is the vulnerable version
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Verify PubNub is enabledCheck the Insteon Hub settings for PubNub API configuration. Look for PubNub subscription keys, channel configuration, or remote access settings in the hub's web interface or mobile app.Affected if PubNub is enabled and configured - the vulnerability exists in the PubNub message handler
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Confirm the cc channel is accessibleExamine the PubNub channel configuration to verify the 'cc' channel is active. This is the specific channel that contains the vulnerable message handler.Affected if The cc channel is configured and active in PubNub settings
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Check network exposure to PubNubReview network firewall rules and hub access settings to determine if the PubNub API is reachable from untrusted networks or the internet.Affected if The PubNub API is accessible from outside the local network or from untrusted sources
The device is affected if it is an Insteon Hub running firmware version 1012 with PubNub enabled and the cc channel accessible.
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 dataUpdate Insteon Hub to patched firmware if available; otherwise segment the device network and restrict PubNub API access to trusted sources only.
- Consultation4.0 h
- Implementation16.0 h
- Testing12.0 h
- Review / QA6.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $10,496.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2017-16274 — 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-2017-16274 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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- Version or environment caveats, and links to real fixes
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