CVE-2025-11710: thunderbird: firefox: Cross-process information leaked due to malicious IPC messages

Severity: Critical

CVSS Score: 9.8

A compromised web process using malicious IPC messages could have caused the privileged browser process to reveal blocks of its memory to the compromised process. This vulnerability affects Firefox < 144, Firefox ESR < 115.29, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.