CVE-2023-6858 (published 2023-12-19T13:38:38.757Z)
Firefox was susceptible to a heap buffer overflow in `nsTextFragment` due to insufficient OOM handling. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.
Affected products: Vendor: Mozilla
Product: Firefox ESR
Versions: unspecified