CVE-2022-45440

Published: Jan 17, 2023Updated: Dec 17, 2025 Sources: CVE List NVD BDUCWE-59

4.4MEDIUM

NVD MITRE

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.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:LAttack Vector

Local

AC:LAttack Complexity

Low

PR:HPrivileges Required

High

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:HConfidentiality

High

I:NIntegrity

None

A:NAvailability

None

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Weaknesses

CWE-59

Affected Products

Zyxel Communications Corp.

commercial·TWaka zyxel

AX7501-B0 firmware

Networking Infrastructure

Zyxel AX7501-B0

Networking Infrastructure

and 1 more affected products View all →

Exploitability

Official Patch Available

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques

Collection

Discovery

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References

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-cleartext-storage-of-wifi-credentials-and-improper-symbolic-links-of-ftp-for-ax7501-b0-cpe

zyxel.com

https://levelblue.com/blogs/labs-research/ngioweb-remains-active-7-years-later

levelblue.com

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