CVE-2025-9133

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2025-9133
StatePUBLISHED
AssignerZyxel
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-10-21 03:15:36 UTC
Updated2026-06-17 10:08:23 UTC
DescriptionA 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.

Risk And Classification

Primary CVSS: v3.1 8.1 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Problem Types: CWE-862 | CWE-862 CWE-862 Missing Authorization

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary8.1HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
3.1CNACVSS8.1HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Zyxel Atp100 - All All All
Hardware Zyxel Atp100w - All All All
Hardware Zyxel Atp200 - All All All
Hardware Zyxel Atp500 - All All All
Hardware Zyxel Atp700 - All All All
Hardware Zyxel Atp800 - All All All
Operating System Zyxel Zld All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Zyxel ATP Series Firmware affected versions from V4.32 through V5.40 Not specified
CNA Zyxel USG FLEX Series Firmware affected versions from V4.50 through V5.40 Not specified
CNA Zyxel USG FLEX 50W Series Firmware affected versions from V4.16 through V5.40 Not specified
CNA Zyxel USG20W-VPN Series Firmware affected versions from V4.16 through V5.40 Not specified

References

ReferenceSourceLinkTags
www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory... [email protected] www.zyxel.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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