What is CVE-2026-49198?

CVE-2026-49198 is a medium-severity vulnerability in Acer Predator Connect W6x, classified under Improper Access Control. CVSS score: 4.9/10. Published 2026-05-29.

How severe is CVE-2026-49198?

Medium severity. CVSS v3 base score is 4.9 out of 10.

Vulnerability in Acer Predator Connect W6x

CVE-2026-49198

Improper access control in the MQTT broker allows wildcard topic subscriptions, exposing all MQTT traffic to unauthorized actors.

EPSS: 0.002 (11.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.

Affected products

Acer Predator Connect W6x — versions W6x_GBL_2.00.000005
Acer Predator_connect_w6x
Acer Predator_connect_w6x_firmware

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

8fc372e3-d9c5-46e4-9410-38469745c639 (Vendor Advisory)

Frequently asked questions

What is CVE-2026-49198?: CVE-2026-49198 is a medium-severity vulnerability in Acer Predator Connect W6x, classified under Improper Access Control. CVSS score: 4.9/10. Published 2026-05-29.
How severe is CVE-2026-49198?: Medium severity. CVSS v3 base score is 4.9 out of 10.