CVE-2025-4087
Public on 2025-04-29
Modified on 2025-05-02
Description
A vulnerability was identified in Thunderbird where XPath parsing could trigger undefined behavior due to missing null checks during attribute access. This could lead to out-of-bounds read access and potentially, memory corruption. This vulnerability affects Firefox < 138, Firefox ESR < 128.10, Thunderbird < 138, and Thunderbird < 128.10.
Severity
Medium
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| HAQM Linux 2 - Firefox Extra | firefox | 2025-05-21 | ALAS2FIREFOX-2025-038 | Fixed |
| HAQM Linux 2023 | firefox | 2025-05-21 | ALAS2023-2025-976 | Fixed |
| HAQM Linux 2 - Core | thunderbird | 2025-05-21 | ALAS2-2025-2858 | Fixed |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| HAQM Linux | CVSSv3 | 6.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L |
| NVD | CVSSv3 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |