Security readout for executives and security teams
Plain-English summary
CVE-2017-16291 is a high-severity flaw in Insteon Hub firmware 1012. An authenticated attacker could trigger a stack-based buffer overflow through PubNub-delivered hub commands, potentially compromising confidentiality, integrity, and availability. The sources do not show active exploitation or a confirmed patch.
Executive priority
Treat as high priority only where Insteon Hub devices are deployed, especially firmware 1012. The business risk is device compromise or outage from an authenticated cloud-command path. If no such devices exist, document non-exposure and monitor vendor guidance.
Technical view
The vulnerability is a CWE-121 stack-based buffer overflow in the Insteon Hub PubNub message handler for the cc channel. Talos describes unsafe copying of the sunset value in cmd s_sun into a 100-byte stack buffer using strcpy. CVSS v3.0 is 8.5 with network attack vector, low privileges, high impact, and high complexity.
Likely exposure
Exposure is most relevant to environments still using Insteon Hub firmware version 1012 with PubNub cloud command handling enabled. The affected version list is incomplete in the provided CVE data, so do not assume other versions are safe or affected without vendor confirmation.
Exploitation context
The CVE is not listed as CISA KEV in the provided bundle. The source describes exploitation requiring an authenticated HTTP request and specially crafted PubNub-delivered commands. No cited source in the bundle confirms active exploitation in the wild.
Researcher notes
Source evidence is strongest for firmware 1012 and the Talos-described cc channel handler. The public bundle does not provide a complete affected-version range, exploit-in-the-wild evidence, or a named patch. Validation should focus on asset firmware, reachable management paths, and official vendor guidance.
Mitigation direction
- Inventory Insteon Hub devices and identify firmware versions.
- Check Insteon and Talos guidance for fixed firmware or official mitigations.
- Restrict hub administration and cloud account access to trusted users.
- Disable or isolate unsupported hubs if no vendor fix is available.
- Monitor hub account activity for unexpected authenticated control actions.
Validation and detection
- Confirm whether any deployed Insteon Hub runs firmware 1012.
- Review asset records for PubNub-connected Insteon Hub deployments.
- Check vendor advisories before declaring other versions unaffected.
- Review account and device logs for unusual authenticated hub commands.
- Verify compensating controls limit untrusted access to hub management paths.
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-2017-16291 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.