Improper Authentication (Authentication Bypass) exists in Neterbit NW-431F Router 20241014-IR03 and before. The router uses a weak/predictable cookie value for authentication. By modifying the cookie value (e.g., setting it to "admin"), an attacker can bypass the authentication schema and gain unauthorized access to admin functionalities.
Severity
CVSS 3.1
9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
0.5% chance of exploitation in the next 30 days; higher than 39% of CVEs (scores of 2026-10-31)