CVE-2026-8508

MEDIUM CVSS 3.1: 6.5 EPSS 0.70%
Updated Aug 04, 2026
Zyxel
Parameter Value
CVSS 6.5 (MEDIUM)
Type CWE-287 (Improper Authentication)
Vendor Zyxel
Public PoC No

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.

Attack Parameters

Attack Vector
Adjacent
Requires local network access
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
None
No data modification
Availability
None
No disruption

CVSS Vector v3.1

Vulnerable Products

zyxel:wax650s firmware