Description
A vulnerability exists in the FTP server of the Zyxel AX7501-B0 firmware prior to V5.17(ABPC.3)C0, which processes symbolic links on external storage media. A local authenticated attacker with administrator privileges could abuse this vulnerability to access the root file system by creating a symbolic link on external storage media, such as a USB flash drive, and then logging into the FTP server on a vulnerable device.
Published: 2023-01-17
Score: 4.4 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2022-48311 A vulnerability exists in the FTP server of the Zyxel AX7501-B0 firmware prior to V5.17(ABPC.3)C0, which processes symbolic links on external storage media. A local authenticated attacker with administrator privileges could abuse this vulnerability to access the root file system by creating a symbolic link on external storage media, such as a USB flash drive, and then logging into the FTP server on a vulnerable device.
History

Wed, 17 Dec 2025 09:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-552

Thu, 03 Apr 2025 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Subscriptions

Zyxel Ax7501-b0 Ax7501-b0 Firmware
cve-icon MITRE

Status: PUBLISHED

Assigner: Zyxel

Published:

Updated: 2025-12-17T08:33:35.888Z

Reserved: 2022-11-15T00:00:00.000Z

Link: CVE-2022-45440

cve-icon Vulnrichment

Updated: 2024-08-03T14:09:57.074Z

cve-icon NVD

Status : Modified

Published: 2023-01-17T02:15:09.517

Modified: 2025-12-17T09:15:50.840

Link: CVE-2022-45440

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses