Security readout for executives and security teams
Plain-English summary
This CVE affects Insteon Hub devices and can let an authenticated attacker crash or potentially take control of the hub by abusing a memory-safety flaw in PubNub message handling. The source describes firmware version 1012; broader affected versions are not specified.
Executive priority
Treat as high priority if Insteon Hub devices are present in operational, executive, or physical-security environments. The vulnerability has severe confidentiality, integrity, and availability impact, but evidence here does not show active exploitation or a named patch.
Technical view
CVE-2017-16302 is a stack-based buffer overflow in the Insteon Hub PubNub "cc" channel message handler. In command handling for `sn_ex`, a `cmd1` value is copied with `strcpy` into a 100-byte stack buffer, allowing overwrite of adjacent stack data.
Likely exposure
Exposure is most likely where Insteon Hub devices are deployed, especially firmware 1012. The bundle does not establish internet-wide exposure, affected CPEs, or all impacted firmware versions.
Exploitation context
The CVSS vector is network-based with low privileges, no user interaction, high impact, and high attack complexity. The source says an authenticated HTTP request is required. KEV is false, and the bundle provides no evidence of active exploitation.
Researcher notes
The strongest source detail is Talos reporting a 100-byte stack buffer overflow in PubNub command handling. Version scope is incomplete beyond firmware 1012, and no official mitigation is included in the bundle, so validation should focus on asset discovery and vendor confirmation.
Mitigation direction
- Inventory Insteon Hub devices and record firmware versions, prioritizing firmware 1012.
- Check Insteon/vendor guidance for firmware updates, replacement, or official mitigations.
- Restrict device management and cloud-service access to trusted accounts and networks where possible.
- Remove or isolate unused hubs until vendor guidance confirms acceptable risk.
- Monitor authentication, configuration, and unusual device behavior around connected hubs.
Validation and detection
- Confirm whether any Insteon Hub devices run firmware 1012.
- Verify only authorized accounts can interact with affected hubs.
- Review network segmentation and egress controls around hub connectivity.
- Check logs for suspicious authenticated access or unexpected PubNub-related activity.
- Confirm remediation status against current vendor or asset-owner records.
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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Open ATT&CK lookupCVE-2017-16302 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.