CVE-2022-42929: Mozilla Firefox

Medium severity, CVSS 6.5. EPSS: 0.8% chance of exploitation in the next 30 days.

If a website called `window.print()` in a particular way, it could cause a denial of service of the browser, which may persist beyond browser restart depending on the user's session restore settings. This vulnerability affects Firefox < 106, Firefox ESR < 102.4, and Thunderbird < 102.4.

Affected products

• Mozilla Firefox: before 106.0 (fixed in 106.0)
• Mozilla Firefox ESR: before 102.4 (fixed in 102.4)
• Mozilla Thunderbird: before 102.4 (fixed in 102.4)

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