Security readout for executives and security teams
Plain-English summary
CVE-2017-16306 is a high-severity flaw in Insteon Hub firmware 1012. An authenticated attacker could send a malicious cloud-delivered command that overflows memory in the hub, potentially compromising confidentiality, integrity, and availability of the device.
Executive priority
Treat this as a high-priority IoT exposure where affected hubs control physical environments or security-sensitive automation. Prioritize inventory and vendor remediation checks, then isolate or replace affected devices if no reliable fix is available.
Technical view
The PubNub message handler for the Insteon Hub "cc" channel uses strcpy on the flg key in cmd sn_exw into a 16-byte stack buffer. Longer input can trigger a stack-based buffer overflow. The CVSS vector is network-based, high complexity, low privilege, no user interaction, scope changed, with high CIA impact.
Likely exposure
Exposure appears limited to Insteon Hub deployments matching the reported firmware context, specifically firmware version 1012. The source bundle does not fully specify all affected versions, so asset confirmation is required before declaring systems unaffected.
Exploitation context
The provided sources do not indicate active exploitation, and CISA KEV status is false. Exploitation requires authenticated access and a specially crafted command through the PubNub service, which raises the barrier but still creates serious risk where attacker access is obtained.
Researcher notes
Evidence identifies a stack buffer overflow in a specific PubNub command path and one firmware version. Affected version breadth and patch status are incomplete in the supplied sources. Avoid assuming broader Insteon product impact without vendor or advisory confirmation.
Mitigation direction
- Identify Insteon Hub devices and confirm firmware versions.
- Check Insteon and Talos guidance for supported firmware updates or vendor remediation.
- Restrict hub administration and cloud account access to trusted users only.
- Remove, isolate, or replace affected hubs if no supported fix is available.
- Monitor for unusual hub control activity or unexpected device behavior.
Validation and detection
- Inventory all Insteon Hub assets in homes, labs, and facilities.
- Confirm whether any hub is running firmware version 1012.
- Review cloud account access and authenticated users for the hub.
- Check vendor advisory status before marking remediation complete.
- Document compensating controls if devices cannot be updated or replaced.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
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CWE-121: Exact CWE lookup
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Open ATT&CK lookupCVE-2017-16306 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 8.5 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H1.86Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
8.5HighVector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://talosintelligence.com/vulnerability_reports/TALOS-2017-0483CVE reference
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Stack-based Buffer Overflow
Stack-based Buffer Overflow represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.