Memory safety bugs present in Firefox ESR 128.12, Thunderbird ESR 128.12, Firefox ESR 140.0, Thunderbird ESR 140.0, Firefox 140 and Thunderbird 140. 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 141, Firefox ESR 128.13, Firefox ESR 140.1, Thunderbird 141, Thunderbird 128.13, and Thunderbird 140.1.
References
| Link | Resource |
|---|---|
| https://bugzilla.mozilla.org/show_bug.cgi?id=1975961 | |
| https://www.mozilla.org/security/advisories/mfsa2025-56/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2025-58/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2025-59/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2025-61/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2025-62/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2025-63/ | Vendor Advisory |
| https://lists.debian.org/debian-lts-announce/2025/07/msg00016.html |
Configurations
Configuration 1 (hide)
|
History
05 Oct 2026, 15:10
| Type | Values Removed | Values Added |
|---|---|---|
| Summary | (es) Errores de seguridad de memoria presentes en Firefox ESR 128.12, Thunderbird ESR 128.12, Firefox ESR 140.0, Thunderbird ESR 140.0, Firefox 140 y Thunderbird 140. Algunos de estos errores mostraron evidencia de corrupción de memoria y presumimos que, con suficiente esfuerzo, algunos de ellos podrían haberse explotado para ejecutar código arbitrario. Esta vulnerabilidad afecta a Firefox menor que 141, Firefox ESR menor que 128.13, Firefox ESR menor que 140.1, Thunderbird menor que 141, Thunderbird menor que 128.13 y Thunderbird menor que 140.1. |
30 Sep 2026, 18:10
| Type | Values Removed | Values Added |
|---|---|---|
| Summary | (es) Errores de seguridad de memoria presentes en Firefox ESR 128.12, Thunderbird ESR 128.12, Firefox ESR 140.0, Thunderbird ESR 140.0, Firefox 140 y Thunderbird 140. Algunos de estos errores mostraron evidencia de corrupción de memoria y presumimos que, con suficiente esfuerzo, algunos de ellos podrían haberse explotado para ejecutar código arbitrario. Esta vulnerabilidad afecta a Firefox < 141, Firefox ESR < 128.13, Firefox ESR < 140.1, Thunderbird < 141, Thunderbird < 128.13 y Thunderbird < 140.1. |
Information
Published : 2025-07-22 21:15
Updated : 2026-10-05 15:10
NVD link : CVE-2025-8035
Mitre link : CVE-2025-8035
CVE.ORG link : CVE-2025-8035
JSON object : View
Products Affected
mozilla
- firefox
- thunderbird
CWE
CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer