CVSS 3.1 Score 8.8 of 10 (high)


Published Nov 21, 2023
Updated: Nov 30, 2023
CWE ID 416


CVE-2023-6207 is a high-severity vulnerability that affects Firefox versions prior to 120, Firefox ESR versions prior to 115.5.0, and Thunderbird versions prior to 115.5.0. The vulnerability is related to ownership mismanagement, leading to a use-after-free issue in ReadableByteStreams. It has a CVSS base score of 8.8, indicating a significant threat level. The exploitability score is 2.8, and user interaction is required for exploitation. The impact of this vulnerability includes high integrity and confidentiality impacts, with the potential for remote attackers to execute arbitrary code on the affected systems. Organizations should update their Firefox and Thunderbird installations to the latest versions to remediate this vulnerability and mitigate potential risks.

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