Vulnerability Monitor

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CVE-2025-9133

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.

Published

2025-10-21T03:15:36.563

Last Modified

2025-10-28T19:18:15.210

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 8.1 (HIGH)

Weaknesses
  • Type: Secondary
    CWE-862
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System zyxel zld < 5.41 Yes
Hardware zyxel atp100 - No
Hardware zyxel atp100w - No
Hardware zyxel atp200 - No
Hardware zyxel atp500 - No
Hardware zyxel atp700 - No
Hardware zyxel atp800 - No
Operating System zyxel zld < 5.41 Yes
Hardware zyxel usg_flex_100 - No
Hardware zyxel usg_flex_100ax - No
Hardware zyxel usg_flex_100w - No
Hardware zyxel usg_flex_200 - No
Hardware zyxel usg_flex_50 - No
Hardware zyxel usg_flex_500 - No
Hardware zyxel usg_flex_50ax - No
Hardware zyxel usg_flex_700 - No
Operating System zyxel zld < 5.41 Yes
Hardware zyxel usg_20w-vpn * No
Hardware zyxel usg_flex_50w - No
References