CVE-2025-8040

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 141 Firefox ESR versions prior to 140.1 Thunderbird versions prior to 141 Thunderbird ESR versions prior to 140.1

Description The software contains memory safety bugs, some of which exhibited evidence of memory corruption. It is presumed that, with sufficient effort, these bugs could potentially be exploited to execute arbitrary code.

Recommendations Update Firefox to version 141 or later. Update Firefox ESR to version 140.1 or later. Update Thunderbird to version 141 or later. Update Thunderbird ESR to version 140.1 or later.