CVE-2022-31737: Mozilla Firefox

Critical severity, CVSS 9.8. EPSS: 0.8% chance of exploitation in the next 30 days.

A malicious webpage could have caused an out-of-bounds write in WebGL, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 91.10, Firefox < 101, and Firefox ESR < 91.10.

Affected products

• Mozilla Firefox: before 101 (fixed in 101)
• Mozilla Firefox ESR: before 91.10 (fixed in 91.10)
• Mozilla Thunderbird: before 91.10 (fixed in 91.10)

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