CVSS 3.1 Score 9.8 of 10 (high)


Published Aug 1, 2023
Updated: Jan 7, 2024
CWE ID 787


CVE-2023-4058 is a memory safety vulnerability that affects Firefox versions prior to 116. The vulnerability has a base severity rating of CRITICAL and a base score of 9.8 out of 10. It can be exploited remotely without requiring any privileges or user interaction, making it highly dangerous. The impact includes high integrity and confidentiality impacts, with a potential for arbitrary code execution. The vulnerability is related to CWE-787 (Out-of-bounds Write). To remediate the issue, organizations should update their Firefox browser to version 116 or higher.

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