CVSS Score of 10 (low)


Published Nov 30, 2023
Updated: Dec 5, 2023


CVE-2023-35138 is a command injection vulnerability affecting Zyxel NAS326 firmware version V5.21(AAZF.14)C0 and NAS542 firmware version V5.21(ABAG.11)C0. This vulnerability allows an unauthenticated attacker to execute operating system (OS) commands by sending a crafted HTTP POST request to the "show_zysync_server_contents" function. The affected products include tsXObX, iQCG0Y, iQCG0Z, rj9bEm, rj9bEl, qPkLex, rj9bEi, tsXObY, and iQCG0f. The risk score for this vulnerability is 73 out of 100. The base severity is rated as critical with a score of 9.8 out of 10. It poses a high danger to organizations as it can lead to unauthorized execution of commands and potential compromise of system integrity and confidentiality. Remediation measures should be taken to address this vulnerability promptly.


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