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Unrated severityNVD Advisory· Published Jan 17, 2023· Updated Dec 17, 2025

CVE-2022-45440

CVE-2022-45440

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.

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Affected products

2
  • Zyxel/AX7501-B0llm-create
    Range: < V5.17(ABPC.3)C0
  • Zyxel/AX7501-B0 firmwarev5
    Range: < V5.17(ABPC.3)C0

Patches

Vulnerability mechanics

References

1

News mentions

0

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