What is CVE-2026-49197?

CVE-2026-49197 is a critical-severity vulnerability in Acer Predator Connect W6x, classified under Improper Authentication. CVSS score: 9.8/10. Published 2026-05-29.

How severe is CVE-2026-49197?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Auth bypass in Acer Predator Connect W6x

CVE-2026-49197

Web endpoints intended for the Acer Connect app improperly validate the HTTP Authorization header, failing to block requests when Base64 decoding fails.

Vulnerability class: Broken Authentication

EPSS: 0.003 (25.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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-287 — Improper Authentication

References

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

Frequently asked questions

What is CVE-2026-49197?: CVE-2026-49197 is a critical-severity vulnerability in Acer Predator Connect W6x, classified under Improper Authentication. CVSS score: 9.8/10. Published 2026-05-29.
How severe is CVE-2026-49197?: Critical severity. CVSS v3 base score is 9.8 out of 10.