Is CVE-2025-9133 actively exploited?

CVE-2025-9133 has no public evidence of in-the-wild exploitation as of 2025-10-28.

What is the CVSS score for CVE-2025-9133?

CVE-2025-9133 has a CVSS score of 8.1 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.

How do I patch CVE-2025-9133?

Patch guidance is available from zyxel security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2025-9133.

Which products are affected by CVE-2025-9133?

3 products: zyxel zld, zyxel zld, zyxel zld.

Fix CVE-2025-9133 - HIGH zyxel zld

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.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Attack Vector: network
Complexity: low
Privileges: low
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: none
Weaknesses: CWE-862 · Missing Authorization

Metadata

Primary Vendor: ZYXEL
Published: 10/21/2025
Last Modified: 10/28/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2025-9133

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary