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Medium severity4.4NVD Advisory· Published Jan 17, 2023· Updated Jun 17, 2026

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

3
  • Zyxel/Ax7501 B0 Firmware2 versions
    cpe:2.3:o:zyxel:ax7501-b0_firmware:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:zyxel:ax7501-b0_firmware:*:*:*:*:*:*:*:*range: <5.17\(abpc.3\)c0
    • (no CPE)range: < V5.17(ABPC.3)C0
  • Zyxel/AX7501-B0llm-fuzzy
    Range: <V5.17(ABPC.3)C0

Patches

Vulnerability mechanics

References

1

News mentions

0

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