CVE-2025-12790

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CVSS 3.1

7.4 high

EPSS

<1%p28

Published

Nov 6, 2025 (Nov 6, 2025)

Modified

Jun 17, 2026

Description

A flaw was found in Rubygem MQTT. By default, the package used to not have hostname validation, resulting in possible Man-in-the-Middle (MITM) attack.

Weakness: CWE-29
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

NVD CVE.org GitHub PoCs EPSS (0.4%)

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