Mozilla · Thunderbird · CVE-2025-9179
Name of the Vulnerable Software and Affected Versions:
Firefox versions prior to 142
Firefox ESR versions prior to 115.27
Firefox ESR versions prior to 128.14
Firefox ESR versions prior to 140.2
Thunderbird versions prior to 142
Thunderbird versions prior to 128.14
Thunderbird versions prior to 140.2
Description:
An attacker was able to perform memory corruption in the GMP process, which processes encrypted media. This process is heavily sandboxed, but represents slightly different privileges from the content process.
Recommendations:
Update Firefox to version 142 or later.
Update Firefox ESR to version 115.27 or later.
Update Firefox ESR to version 128.14 or later.
Update Firefox ESR to version 140.2 or later.
Update Thunderbird to version 142 or later.
Update Thunderbird to version 128.14 or later.
Update Thunderbird to version 140.2 or later.