CVSS 3.1 Score 7.5 of 10 (high)


Published Sep 11, 2023
Updated: Sep 14, 2023


The vulnerability with the CVE ID CVE-2023-4583 affects Firefox versions prior to 117, Firefox ESR versions prior to 115.2, and Thunderbird versions prior to 115.2. It is caused by an incorrect assumption made in the `HttpBaseChannel` of Firefox when checking if the Browsing Context has been discarded. This vulnerability can be remediated by updating affected products to the latest versions. The potential danger it poses to an organization is high, with a base severity rating of HIGH and an integrity impact of HIGH according to [email protected]. The exploitability score is 3.9 out of 10, indicating a moderate level of exploitability. The attack vector is through the network and no user interaction or privileges are required for exploitation.


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