Is CVE-2023-33379 actively exploited?

No active exploitation of CVE-2023-33379 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-33379 be exploited remotely?

Yes. CVE-2023-33379 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-33379?

CVE-2023-33379 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2023-33379

CRITICAL

CVE-2023-33379

NVD-CWE-noinfoPublished: August 4, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

Connected IO v2.1.0 and prior has a misconfiguration in their MQTT broker used for management and device communication, which allows devices to connect to the broker and issue commands to other device, impersonating Connected IO management platform and sending commands to all of Connected IO's devices.

NVD Source

Technical Analysis

CVE-2023-33379 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

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 9.8.