CVSS 3.1 Score 7.5 of 10 (high)


Published Sep 27, 2023
Updated: Jan 7, 2024
CWE ID 190


CVE-2023-5173 is a high-severity vulnerability that affects Firefox versions prior to 118. It is caused by an integer overflow that can occur in a non-standard configuration of Firefox, specifically when a preference allowing non-HTTPS Alternate Services is enabled. This vulnerability can lead to an out-of-bounds write to privileged process memory. The potential danger it poses to organizations is high, as it can be exploited remotely without the need for any user interaction. The vulnerability has a base score of 7.5 and an impact score of 3.6, indicating its seriousness and potential impact on the integrity of systems. To remediate this vulnerability, organizations should update their Firefox browser to version 118 or newer, which contains the necessary fixes to address the issue.

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