CVSS 3.1 Score 8.8 of 10 (high)


Published Nov 30, 2023
Updated: Dec 6, 2023


CVE-2023-37927 is a cyber vulnerability that affects the Zyxel NAS326 firmware version V5.21(AAZF.14)C0 and NAS542 firmware version V5.21(ABAG.11)C0. It involves the improper neutralization of special elements in the CGI program, which could allow an authenticated attacker to execute operating system (OS) commands by sending a crafted URL to a vulnerable device. The vulnerability has a risk score of 67 and a base severity rating of HIGH, with potential impacts on integrity and confidentiality being HIGH as well. The exploitability score is 2.8, indicating a moderate level of difficulty for attackers to exploit this vulnerability. To remediate the issue, users are advised to update their Zyxel NAS326 and NAS542 firmware to the latest versions provided by the vendor. This vulnerability poses a significant danger to organizations as it could allow attackers to gain unauthorized access and potentially compromise sensitive data or disrupt services on affected devices.

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