CVE-2026-49186 — CRITICAL (9.8)

Q: How severe is CVE-2026-49186?

CVE-2026-49186 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Q: Is there a patch for CVE-2026-49186?

Check the references section above for vendor advisories and patch information. Affected products include: Acer Connect M6E 5G Firmware, Acer Connect M6E 5G.

Vulnerability 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.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Acer	Connect M6E 5G Firmware	<= m6e_ai_1.00.000019
Acer	Connect M6E 5G	-

Related Weaknesses (CWE)

CWE-287

References

https://community.acer.com/en/kb/articles/19707MitigationVendor Advisory

FAQ

What is CVE-2026-49186?

CVE-2026-49186 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 ro...

How severe is CVE-2026-49186?

CVE-2026-49186 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2026-49186?

Check the references section above for vendor advisories and patch information. Affected products include: Acer Connect M6E 5G Firmware, Acer Connect M6E 5G.