CVE-2025-12790

HIGH
2025-11-06 [email protected]
7.4
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

Lifecycle Timeline

3
Patch Released
Mar 31, 2026 - 21:13 nvd
Patch available
Analysis Generated
Mar 28, 2026 - 19:20 vuln.today
CVE Published
Nov 06, 2025 - 21:15 nvd
HIGH 7.4

Tags

Information Disclosure Redhat

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.

Analysis

A flaw was found in Rubygem MQTT. Rated high severity (CVSS 7.4), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.

Technical Context

This vulnerability is classified under CWE-29. 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.

Affected Products

See vendor advisory for affected versions.

Remediation

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Priority Score

37
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +37
POC: 0

Vendor Status

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CVE-2025-12790 vulnerability details – vuln.today
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