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NVD Vulnerability Details :
CVE-2022-45440
Modified
More InfoOfficial Page
Source-security@zyxel.com.tw
View Known Exploited Vulnerability (KEV) details
Published At-17 Jan, 2023 | 02:15
Updated At-17 Dec, 2025 | 09:15

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.14.4MEDIUM
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Primary3.14.4MEDIUM
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Type: Secondary
Version: 3.1
Base score: 4.4
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Type: Primary
Version: 3.1
Base score: 4.4
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
CPE Matches
Zyxel Networks Corporation
zyxel
>>ax7501-b0_firmware>>Versions before 5.17\(abpc.3\)c0(exclusive)
cpe:2.3:o:zyxel:ax7501-b0_firmware:*:*:*:*:*:*:*:*
Zyxel Networks Corporation
zyxel
>>ax7501-b0>>-
cpe:2.3:h:zyxel:ax7501-b0:-:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-59Primarysecurity@zyxel.com.tw
CWE-59Secondarynvd@nist.gov
CWE ID: CWE-59
Type: Primary
Source: security@zyxel.com.tw
CWE ID: CWE-59
Type: Secondary
Source: nvd@nist.gov
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
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-cpesecurity@zyxel.com.tw
Vendor Advisory
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-cpeaf854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
Hyperlink: 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
Source: security@zyxel.com.tw
Resource:
Vendor Advisory
Hyperlink: 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
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Vendor Advisory
Change History
0Changes found
Details not found