CVE-2026-4690
Public on 2026-03-24
Modified on 2026-03-25
Description
Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, and Firefox ESR < 140.9.
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 2 - Firefox Extra | firefox | Pending Fix | ||
| Amazon Linux 2023 | firefox | Pending Fix | ||
| Amazon Linux 2 - Core | thunderbird | Pending Fix |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv3 | 6.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:N/A:H |
| NVD | CVSSv3 | 8.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H |