EIP-2026-101503

PRE-CVE

ZyWALL USG Appliance - Multiple Vulnerabilities

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-101503. PoCs published by RedTeam Pentesting.

AI-analyzed exploit summary This is a detailed advisory describing an authentication bypass vulnerability in ZyXEL ZyWALL USG appliances, allowing unauthenticated users to download and upload configuration files. The writeup includes steps for decrypting firmware files and exploiting the web interface bypass.

Description

ZyWALL USG Appliance - Multiple Vulnerabilities

Exploits (1)

exploitdb WRITEUP VERIFIED
by RedTeam Pentesting · textremotehardware
https://www.exploit-db.com/exploits/17244

This is a detailed advisory describing an authentication bypass vulnerability in ZyXEL ZyWALL USG appliances, allowing unauthenticated users to download and upload configuration files. The writeup includes steps for decrypting firmware files and exploiting the web interface bypass.

Classification
Writeup 100%
Attack Type
Auth Bypass
Complexity
Moderate
Reliability
Reliable
Target: ZyXEL ZyWALL USG appliances (various models) with firmware releases before April 25, 2011
No auth needed
Prerequisites: Access to the management web interface of the ZyXEL ZyWALL USG appliance
devstral-2 · analyzed Feb 16, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026