CVE-2025-9181
Public on 2025-08-19
Modified on 2025-08-22
Description
Uninitialized memory in the JavaScript Engine component. This vulnerability affects Firefox < 142, Firefox ESR < 128.14, Firefox ESR < 140.2, Thunderbird < 142, Thunderbird < 128.14, and Thunderbird < 140.2.
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 2 - Firefox Extra | firefox | 2025-09-16 | ALAS2FIREFOX-2025-042 | Fixed |
| Amazon Linux 2023 | firefox | 2025-09-08 | ALAS2023-2025-1171 | Fixed |
| Amazon Linux 2 - Core | thunderbird | 2025-09-16 | ALAS2-2025-2999 | 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:N/A:L |
| NVD | CVSSv3 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |