CVE-2025-10529
Public on 2025-09-16
Modified on 2025-09-17
Description
Same-origin policy bypass in the Layout component.
This vulnerability affects Firefox < 143, Firefox ESR < 140.3, Thunderbird < 143, and Thunderbird < 140.3.
This vulnerability affects Firefox < 143, Firefox ESR < 140.3, Thunderbird < 143, and Thunderbird < 140.3.
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 2 - Firefox Extra | firefox | 2025-09-29 | ALAS2FIREFOX-2025-043 | Fixed |
| Amazon Linux 2023 | firefox | 2025-09-29 | ALAS2023-2025-1203 | Fixed |
| Amazon Linux 2 - Core | thunderbird | 2025-09-29 | ALAS2-2025-3008 | Fixed |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv3 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N |
| NVD | CVSSv3 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |