CVEvulnerability
CVE-2025-5268
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-119
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.
Affected configurations
• mozilla firefox (< 128.11.0)
• mozilla firefox (< 139.0)
• mozilla thunderbird (< 128.11.0)
• mozilla thunderbird (>= 129.0 < 139.0)
Related
Weakness · CWE (1)
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer weakness
References
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=1950136%2C1958121%2C1960499%2C1962634 Broken Link
- https://www.mozilla.org/security/advisories/mfsa2025-42/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-44/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-45/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-46/ Vendor Advisory
- 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