Is CVE-2017-16296 actively exploited?

No active exploitation of CVE-2017-16296 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2017-16296 be exploited remotely?

Yes. CVE-2017-16296 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2017-16296?

CVE-2017-16296 has a CVSS score of 9.9 (CRITICAL).

HOME VULNERABILITIESCVE-2017-16296

CRITICAL

CVE-2017-16296

CWE-121Published: January 11, 2023· Updated: Jun 17, 2026

9.9

CVSS v3.1

Official Description

Multiple exploitable buffer overflow vulnerabilities exist in the PubNub message handler for the "cc" channel of Insteon Hub running firmware version 1012. Specially crafted commands sent through the PubNub service can cause a stack-based buffer overflow overwriting arbitrary data. An attacker should send an authenticated HTTP request to trigger this vulnerability. In cmd s_schd, at 0x9d01a1d4, the value for the `days` key is copied using `strcpy` to the buffer at `$sp+0x2b0`.This buffer is 32 bytes large, sending anything longer will cause a buffer overflow.

NVD Source

Technical Analysis

CVE-2017-16296 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.9.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.