A path traversal vulnerability in the CLI command used to execute configuration files in Zyxel ATP series firmware versions from V4.32 through V5.42 Patch 1, USG FLEX series firmware versions from V4.50 through V5.42 Patch 1, USG FLEX 50(W) series firmware versions from V4.16 through V5.42 Patch 1, and USG20(W)-VPN series firmware versions from V4.16 through V5.42 Patch 1 could allow an authenticated attacker with administrator privileges to execute a crafted malicious configuration file on an affected device.
History

Tue, 04 Aug 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 04 Aug 2026 04:45:00 +0000

Type Values Removed Values Added
First Time appeared Zyxel
Zyxel atp Series Firmware
Zyxel usg20(w)-vpn Series Firmware
Zyxel usg Flex 50(w) Series Firmware
Zyxel usg Flex Series Firmware
Vendors & Products Zyxel
Zyxel atp Series Firmware
Zyxel usg20(w)-vpn Series Firmware
Zyxel usg Flex 50(w) Series Firmware
Zyxel usg Flex Series Firmware

Tue, 04 Aug 2026 03:30:00 +0000

Type Values Removed Values Added
Description A path traversal vulnerability in the CLI command used to execute configuration files in Zyxel ATP series firmware versions from V4.32 through V5.42 Patch 1, USG FLEX series firmware versions from V4.50 through V5.42 Patch 1, USG FLEX 50(W) series firmware versions from V4.16 through V5.42 Patch 1, and USG20(W)-VPN series firmware versions from V4.16 through V5.42 Patch 1 could allow an authenticated attacker with administrator privileges to execute a crafted malicious configuration file on an affected device.
Weaknesses CWE-22
References
Metrics cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Zyxel

Published:

Updated: 2026-08-04T18:45:22.908Z

Reserved: 2026-07-06T08:22:09.395Z

Link: CVE-2026-14818

cve-icon Vulnrichment

Updated: 2026-08-04T18:45:18.403Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-04T04:30:04Z