CVE-2025-4921 | Mozilla Firefox up to 138.0.3 Javascript Object out-of-bounds write (Nessus ID 236891)
A vulnerability has been found in Mozilla Firefox up to 138.0.3 and classified as critical. This vulnerability affects unknown code of the component Javascript Object Handler. The manipulation leads to out-of-bounds write.
This vulnerability was named CVE-2025-4921. The attack can be initiated remotely. There is no exploit available.
It is recommended to upgrade the affected component.