CVE-2026-49191 PUBLISHED

Exposed Hard-coded M3WebServer Backend API Key

Assigner: Acer
Reserved: 28.05.2026 Published: 04.06.2026 Updated: 04.06.2026

The production build of the M3WebServer hard-codes its backend API keys, which can be easily intercepted through verbose error handling pages.

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS Score: 9.3

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Vendor	Acer
Product	Connect M6E 5G Portable WiFi Router
Versions	Default: unaffected affected from * to M6E_AI_1.00.000019 (incl.)