CVSS 3.1 Score 5.5 of 10 (medium)


Published Aug 1, 2023
Updated: Aug 7, 2023


CVE-2023-4054 is a vulnerability that affects Firefox on Windows. When opening appref-ms files, Firefox fails to warn the user about the potential presence of malicious code. This vulnerability affects Firefox versions < 116, Firefox ESR versions < 102.14 and < 115.1, Thunderbird versions < 102.14 and < 115.1. The danger it poses to organizations is rated as medium severity with a base score of 5.5 out of 10. The exploitability score is rated as 1.8 out of 10, indicating a low level of exploitability. The vulnerability requires user interaction and has a local attack vector, meaning an attacker needs limited privileges to exploit it. It has a high impact on integrity but does not affect confidentiality or availability.


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