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MEDIUM · 4.4

CVE-2022-45440

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 adminis...

Vulnerability 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.

CVSS Score

4.4

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE

Affected Products

VendorProductVersions
ZyxelAx7501-B0 Firmware< 5.17\(abpc.3\)c0
ZyxelAx7501-B0-

Related Weaknesses (CWE)

CWE-59

References

FAQ

What is CVE-2022-45440?

CVE-2022-45440 is a vulnerability with a CVSS score of 4.4 (MEDIUM). 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 adminis...

How severe is CVE-2022-45440?

CVE-2022-45440 has been rated MEDIUM with a CVSS base score of 4.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2022-45440?

Check the references section above for vendor advisories and patch information. Affected products include: Zyxel Ax7501-B0 Firmware, Zyxel Ax7501-B0.