CVE-2022-29913: Mozilla Thunderbird

Medium severity, CVSS 6.5. EPSS: 0.4% chance of exploitation in the next 30 days.

The parent process would not properly check whether the Speech Synthesis feature is enabled, when receiving instructions from a child process. This vulnerability affects Thunderbird < 91.9.

Affected products

• Mozilla Thunderbird: before 91.9 (fixed in 91.9)

Published 2022-12-22. Last modified 2026-06-17.