A vulnerability identified as CVE-2024-10463 could allow video frames to be leaked between different web origins under certain conditions. This issue affects Firefox versions prior to 132, Firefox ESR versions prior to 128.4 and 115.17, as well as Thunderbird versions prior to 128.4 and 132. The flaw was addressed in Firefox 132 and Firefox ESR 128.4 releases. The vulnerability has a high severity rating with a CVSS score of 7.5, indicating a significant confidentiality impact without requiring user interaction or privileges.