Security readout for executives and security teams
Plain-English summary
This issue affects Insteon Hub firmware 1012. A logged-in attacker could send a specially crafted command through PubNub and trigger a memory corruption flaw. Successful exploitation could allow serious confidentiality, integrity, and availability impact on the hub.
Executive priority
Treat as high priority for environments using Insteon Hub automation. The impact could be severe, but exploitation requires authenticated access, so urgency depends on whether affected hubs exist and how tightly access is controlled.
Technical view
CVE-2017-16294 is a stack-based buffer overflow in the Insteon Hub PubNub "cc" channel message handler. In cmd s_schd, the "on" value is copied with strcpy into a 32-byte stack buffer. The CVSS 3.0 score is 8.5, with network attack vector, low privileges, and high CIA impact.
Likely exposure
Exposure is most likely where Insteon Hub devices running firmware 1012 are still deployed and reachable through their PubNub-based control path. The supplied sources do not define other affected versions.
Exploitation context
CISA KEV status is false in the supplied bundle. The Talos-referenced description says exploitation requires an authenticated HTTP request and specially crafted commands through PubNub. No provided source states active exploitation in the wild.
Researcher notes
Evidence identifies CWE-121 in the PubNub "cc" channel handler, specifically cmd s_schd handling of the "on" key. Version evidence is firmware 1012. The bundle does not provide a named patch, affected-version range, proof of active exploitation, or vendor lifecycle status.
Mitigation direction
- Inventory Insteon Hub devices and identify firmware version 1012 deployments.
- Check Insteon or vendor guidance for firmware updates or supported remediation.
- Restrict network access to hub management and automation control paths.
- Review and rotate credentials used for hub or PubNub-linked access.
- If no fix exists, isolate or retire affected hubs based on business risk.
Validation and detection
- Confirm whether any Insteon Hub assets are present in the environment.
- Record firmware versions and flag any hub running firmware 1012.
- Review logs for unusual authenticated hub control activity.
- Verify hub access is limited to trusted networks and users.
- Document that no provided source confirms active exploitation.
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
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-121: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2017-16294 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.