CVSS 3.1 Score 8.8 of 10 (high)


Published Nov 21, 2023
Updated: Nov 30, 2023
CWE ID 787


CVE-2023-6212 is a memory safety vulnerability that affects Firefox versions prior to 120, Firefox ESR versions prior to 115.5.0, and Thunderbird versions prior to 115.5. It was discovered that these versions contained memory corruption bugs, some of which had the potential to be exploited for running arbitrary code. The vulnerability has a base severity rating of HIGH with a base score of 8.8 according to The exploitability score is 2.8, and it requires user interaction to be triggered over a network. The impact includes high integrity and confidentiality impacts, with an availability impact also rated as high. Remediation for this vulnerability involves updating the affected products to the latest version available.

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