CVSS 3.1 Score 7.5 of 10 (high)


Published Aug 1, 2023
Updated: Aug 11, 2023
CWE ID 125


CVE-2023-4048 is a vulnerability that affects Firefox versions below 116, Firefox ESR versions below 102.14, and Firefox ESR versions below 115.1. It is categorized as an out-of-bounds read vulnerability, which can lead to a crash when parsing HTML with DOMParser in low memory situations. The vulnerability has a base severity rating of HIGH with a base score of 7.5 according to NVD. The exploitability score is 3.9, and it does not require any privileges or user interaction to be exploited. The attack vector is through the network, and it has no impact on integrity or confidentiality but can have a high impact on availability. Remediation for this vulnerability would involve updating to Firefox version 116 or higher for regular users and to Firefox ESR version 102.14 or higher for those using the extended support release version.

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