๐Ÿ›ก๏ธ CVE-2025-5268
๐ŸŸ  CVSS 8.1 โ€” High โœ… No Known Exploit CWE-119 NVD
8.1
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Memory safety bugs present in Firefox 138, Thunderbird 138, Firefox ESR 128.10, and Thunderbird 128.10. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 139, Firefox ESR 128.11, Thunderbird 139, and Thunderbird 128.11.

Details

Severity HIGH
CVSS Score 8.1
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE CWE-119
Public Exploit โœ… No
Source NVD
Published 2025-05-27
Updated 2026-06-02
Modified 2026-04-13
Fix URL N/A

Affected Packages

Software From version Fixed in
firefox โ€” 139.0
thunderbird 129.0 139.0

Similar Threats

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