The local MQTT broker does not enforce topic-level Access Control Lists (ACLs). This allows any client to subscribe using wildcard characters (# or +) to enumerate hidden network devices or publish rogue control commands.

Attack Vector Network

Attack Complexity Low

Privileges Required High

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Acer Connect M6E 5G Portable WiFi Router unaffected
Version Status Constraints
* affected ≤ M6E_AI_1.00.000019

No data.

No data.

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No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://community.acer.com/en/kb/articles/19707 cve-icon cve-icon
History

Thu, 04 Jun 2026 04:00:00 +0000

Type Values Removed Values Added
Description The local MQTT broker does not enforce topic-level Access Control Lists (ACLs). This allows any client to subscribe using wildcard characters (# or +) to enumerate hidden network devices or publish rogue control commands.
Title Lack of MQTT Broker Topic Access Control Lists
Weaknesses CWE-287
References
Metrics cvssV4_0

{'score': 8.6, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Acer

Published:

Updated: 2026-06-04T03:36:59.864Z

Reserved: 2026-05-28T02:46:15.560Z

Link: CVE-2026-49186

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-06-04T04:17:15.550

Modified: 2026-06-04T04:17:15.550

Link: CVE-2026-49186

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-04T05:30:06Z

Weaknesses