EIP-2026-102143

PRE-CVE

ZYXEL P-660HN-T1A Router - Authentication Bypass

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-102143. PoCs published by Michael Grifalconi.

AI-analyzed exploit summary This exploit describes an authentication bypass vulnerability in ZyXEL P-660HN-T1A routers. By accessing a specific URL, an attacker can bypass the login form if a legitimate user is already logged in, potentially allowing unauthorized access to the administration interface.

Description

ZYXEL P-660HN-T1A Router - Authentication Bypass

Exploits (1)

exploitdb WRITEUP
by Michael Grifalconi · textwebappshardware
https://www.exploit-db.com/exploits/32204

This exploit describes an authentication bypass vulnerability in ZyXEL P-660HN-T1A routers. By accessing a specific URL, an attacker can bypass the login form if a legitimate user is already logged in, potentially allowing unauthorized access to the administration interface.

Classification
Writeup 90%
Attack Type
Auth Bypass
Complexity
Trivial
Reliability
Reliable
Target: ZyXEL P-660HN-T1A, version 3.40(BYF.5)
No auth needed
Prerequisites: A legitimate user must be logged into the router's web interface
mistral-large-3 · analyzed Feb 16, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026