CVEvulnerability
CVE-2025-5269
8.1 HIGH
Official page ↗
- Status
- Modified
- Published
- 2025-05-27
- Last modified
- 2026-10-05
- Assigner
- [email protected]
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 8.1 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-787
Description
Memory safety bug present in Firefox ESR 128.10, and Thunderbird 128.10. This bug showed evidence of memory corruption and we presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox ESR 128.11 and Thunderbird 128.11.
Affected configurations
• mozilla firefox (< 128.11.0)
• mozilla thunderbird (< 128.11.0)
Related
Weakness · CWE (1)
- CWE-787 Out-of-bounds Write weakness
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1924108 Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2025-44/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-46/ www.mozilla.org
- https://lists.debian.org/debian-lts-announce/2025/05/msg00043.html lists.debian.org
- https://lists.debian.org/debian-lts-announce/2025/05/msg00046.html lists.debian.org