CVSS 3.1 Score 5.9 of 10 (medium)


Published Oct 23, 2023
Updated: Oct 27, 2023
CWE ID 290


CVE-2023-28803 is an authentication bypass vulnerability in Zscaler Client Connector on Windows, specifically affecting versions before 3.9. The vulnerability allows for the spoofing of a device with a synthetic IP address, enabling a functionality bypass. This vulnerability has a base severity rating of MEDIUM and a base score of 5.9 according to the CVSS v3.1 system. The potential danger it poses to an organization is considered to be high in terms of confidentiality impact, but low in terms of integrity impact. The vulnerability does not require any privileges and does not require user interaction, making it easier for attackers to exploit. To remediate this vulnerability, organizations should update their Zscaler Client Connector to version 3.9 or higher to mitigate the risk of an authentication bypass attack.

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