CVE-2023-6859

CVSS 3.1 Score 8.8 of 10 (high)

Details

Published Dec 19, 2023
Updated: Feb 2, 2024
CWE ID 416

Summary

CVE-2023-6859 is a newly disclosed vulnerability that affects Firefox ESR versions under 115.6, Thunderbird versions under 115.6, and Firefox versions under 121. This issue involves a use-after-free condition during TLS socket creation, which can occur when the software is under memory pressure. Exploiting this vulnerability could result in arbitrary code execution or denial-of-service attacks. Users are strongly advised to update their software to mitigate this risk.

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