CVE-2022-46881: Mozilla Firefox

High severity, CVSS 8.8. EPSS: 0.7% chance of exploitation in the next 30 days.

An optimization in WebGL was incorrect in some cases, and could have led to memory corruption and a potentially exploitable crash. *Note*: This advisory was added on December 13th, 2022 after we better understood the impact of the issue. The fix was included in the original release of Firefox 106. This vulnerability affects Firefox < 106, Firefox ESR < 102.6, and Thunderbird < 102.6.

Affected products

• Mozilla Firefox: before 106.0 (fixed in 106.0)
• Mozilla Firefox ESR: before 102.6 (fixed in 102.6)
• Mozilla Thunderbird: before 102.6 (fixed in 102.6)

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