CVE-2022-28287: Mozilla Firefox

Medium severity, CVSS 6.5. EPSS: 0.6% chance of exploitation in the next 30 days.

In unusual circumstances, selecting text could cause text selection caching to behave incorrectly, leading to a crash. This vulnerability affects Firefox < 99.

Affected products

• Mozilla Firefox: before 99.0 (fixed in 99.0)

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