CVEvulnerability
CVE-2025-11715
8.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2025-10-14
- Last modified
- 2026-10-23
- Assigner
- [email protected]
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-119
Description
Memory safety bugs present in Firefox ESR 140.3, Thunderbird ESR 140.3, Firefox 143 and Thunderbird 143. 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 144, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4.
Affected configurations
• mozilla firefox (< 140.4.0)
• mozilla firefox (< 144.0)
• mozilla thunderbird (< 140.4.0)
• mozilla thunderbird (< 144.0)
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=1983838%2C1987624%2C1988244%2C1988912%2C1989734%2C1990085%2C1991899 Broken Link, Issue Tracking
- https://www.mozilla.org/security/advisories/mfsa2025-81/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-83/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-84/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-85/ Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2025/10/msg00015.html lists.debian.org
- https://lists.debian.org/debian-lts-announce/2025/10/msg00031.html lists.debian.org