CVE-2026-8508

MEDIUM

Zyxel WAX650S Firmware - Improper Authentication

Title source: rule

Description

An improper authentication vulnerability in the "social_login.cgi" CGI program in Zyxel WAX650S firmware versions through 7.10(ABRM.4)C0 could allow an attacker on the WLAN to bypass captive portal authentication.

References (1)

Core 1

Core References

Vendor Advisory vendor-advisory

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-command-injection-and-improper-authentication-vulnerabilities-in-certain-aps-fwa7-and-security-routers-08-04-2026

Scores

CVSS v3 6.5

EPSS 0.0054

EPSS Percentile 42.7%

Attack Vector ADJACENT_NETWORK

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-287

Status published

Products (1)

Zyxel/WAX650S firmware <= 7.10(ABRM.4)C0

Published Aug 04, 2026

Tracked Since Aug 04, 2026