What is CVE-2026-49203?

CVE-2026-49203 is a high-severity vulnerability in Acer Connect_m6e_5g, classified under Improper Authentication. CVSS score: 8.3/10. Published 2026-06-04.

How severe is CVE-2026-49203?

High severity. CVSS v3 base score is 8.3 out of 10.

Auth bypass in Acer Connect_m6e_5g

CVE-2026-49203

Crucial management API endpoints for cellular eSIM allocation do not validate caller authorization, allowing remote profiles to be rewritten or deleted.

Vulnerability class: Broken Authentication

EPSS: 0.000 (3.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.3 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H.

Affected products

Acer Connect_m6e_5g
Acer Connect_m6e_5g_firmware
Acer Connect M6e 5g Portable Wifi Router

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

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

Frequently asked questions

What is CVE-2026-49203?: CVE-2026-49203 is a high-severity vulnerability in Acer Connect_m6e_5g, classified under Improper Authentication. CVSS score: 8.3/10. Published 2026-06-04.
How severe is CVE-2026-49203?: High severity. CVSS v3 base score is 8.3 out of 10.