CVE-2026-8508

Medium

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.

SeverityMedium

CVSS6.5

Exploit probability—

Product

WAX650S firmware

PublishedAug 4, 2026

First seenAug 4, 2026

Weakness typeCWE-287Improper authentication

How to fix

Vendor advisories

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

Affected products

Product	Affected versions	Fixed in
Zyxel WAX650S firmware	<= 7.10(ABRM.4)C0	—

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