AUGUST 4, 2026
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Case File

CVE-2023-33372

CRITICAL · CVSS 9.8 EPSS 0.76%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2023-08-04 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. See the original NVD description below for full technical details.

CVE
CVE-2023-33372
Severity
CRITICAL
CVSS
9.8
EPSS
0.76%

Original NVD Description

Connected IO v2.1.0 and prior uses a hard-coded username/password pair embedded in their device's firmware used for device communication using MQTT. An attacker who gained access to these credentials is able to connect to the MQTT broker and send messages on behalf of devices, impersonating them. in order to sign and verify JWT session tokens, allowing attackers to sign arbitrary session tokens and bypass authentication.

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