Description

A missing authorization vulnerability in Zyxel ATP series firmware versions from V4.32 through V5.40, USG FLEX series firmware versions from V4.50 through V5.40, USG FLEX 50(W) series firmware versions from V4.16 through V5.40, and USG20(W)-VPN series firmware versions from V4.16 through V5.40 could allow a semi-authenticated attacker—who has completed only the first stage of the two-factor authentication (2FA) process—to view and download the system configuration from an affected device.

INFO

Published Date :

2025-10-21T01:57:20.265Z

Last Modified :

2026-02-26T16:57:22.191Z

Source :

Zyxel
AFFECTED PRODUCTS

The following products are affected by CVE-2025-9133 vulnerability.

Vendors Products
Zyxel
  • Atp100
  • Atp100w
  • Atp200
  • Atp500
  • Atp700
  • Atp800
  • Atp Series Firmware
  • Usg20(w)-vpn Series Firmware
  • Usg 20w-vpn
  • Usg Flex 100
  • Usg Flex 100ax
  • Usg Flex 100w
  • Usg Flex 200
  • Usg Flex 50
  • Usg Flex 50(w) Series Firmware
  • Usg Flex 500
  • Usg Flex 50ax
  • Usg Flex 50w
  • Usg Flex 700
  • Usg Flex Series Firmware
  • Zld
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-9133.

URL Resource
https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-post-authentication-command-injection-and-missing-authorization-vulnerabilities-in-zld-firewalls-10-21-2025 cve-icon cve-icon
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CVSS Vulnerability Scoring System

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