CVE-2017-16329Public exploitNetwork attack vector

Authenticated code execution via unchecked s_event_delay copy

Published Jan 11, 2023 · Updated Apr 8, 2025

Stack-based buffer overflow in the Insteon Hub 1012 PubNub cc handler allows remote authenticated users to execute arbitrary code. The s_event_alarm handler passes the unbounded s_event_delay string to strcpy, copying more than 32 bytes into a 32-byte stack buffer. A valid PubNub-authenticated HTTP request is required; a crafted value can overwrite saved registers and the return address, enabling a crash or code execution.

CVSS severity9.9
Critical
EPSS probability0.85%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-based buffer overflow in the Insteon Hub 1012 PubNub cc handler allows remote authenticated users to execute arbitrary code. The s_event_alarm handler passes the unbounded s_event_delay string to strcpy, copying more than 32 bytes into a 32-byte stack buffer. A valid PubNub-authenticated HTTP request is required; a crafted value can overwrite saved registers and the return address, enabling a crash or code execution.

The record

CVE
CVE-2017-16329
Published
Jan 11, 2023
Updated
Apr 8, 2025
Vendor
Insteon
Product
Insteon Hub
Classifications
CWE-787, CWE-121, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 11, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=Not specified

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Insteon · Insteon Hubversion=Not specified

Published CVSS scores

8.5Cisco TalosCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
9.9NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-787Out-of-bounds Write
CWE-121Stack-based Buffer Overflow
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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