Memory safety bugs present in Firefox 135, Thunderbird 135, Firefox ESR 115.20, Firefox ESR 128.7, and Thunderbird 128.7. 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 136, Firefox ESR 115.21, Firefox ESR 128.8, Thunderbird 136, and Thunderbird 128.8.
References
| Link | Resource |
|---|---|
| https://bugzilla.mozilla.org/buglist.cgi?bug_id=1938471%2C1940716 | Exploit |
| https://www.mozilla.org/security/advisories/mfsa2025-14/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2025-15/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2025-16/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2025-17/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2025-18/ | Vendor Advisory |
| http://www.openwall.com/lists/oss-security/2025/03/10/6 | Vendor Advisory |
| https://lists.debian.org/debian-lts-announce/2025/03/msg00006.html |
Configurations
Configuration 1 (hide)
|
History
05 Oct 2026, 15:10
| Type | Values Removed | Values Added |
|---|---|---|
| Summary | (es) Se han detectado errores de seguridad de memoria en Firefox 135, Thunderbird 135, Firefox ESR 115.20, Firefox ESR 128.7 y Thunderbird 128.7. Algunos de estos errores mostraban evidencia de corrupción de memoria y suponemos que, con el suficiente esfuerzo, algunos de ellos podrían haberse aprovechado para ejecutar código arbitrario. Esta vulnerabilidad afecta a Firefox menor que 136, Firefox ESR menor que 115.21, Firefox ESR menor que 128.8, Thunderbird menor que 136 y Thunderbird menor que 128.8. |
30 Sep 2026, 18:10
| Type | Values Removed | Values Added |
|---|---|---|
| Summary | (es) Se han detectado errores de seguridad de memoria en Firefox 135, Thunderbird 135, Firefox ESR 115.20, Firefox ESR 128.7 y Thunderbird 128.7. Algunos de estos errores mostraban evidencia de corrupción de memoria y suponemos que, con el suficiente esfuerzo, algunos de ellos podrían haberse aprovechado para ejecutar código arbitrario. Esta vulnerabilidad afecta a Firefox < 136, Firefox ESR < 115.21, Firefox ESR < 128.8, Thunderbird < 136 y Thunderbird < 128.8. |
Information
Published : 2025-03-04 14:15
Updated : 2026-10-05 15:10
NVD link : CVE-2025-1937
Mitre link : CVE-2025-1937
CVE.ORG link : CVE-2025-1937
JSON object : View
Products Affected
mozilla
- firefox
- thunderbird
CWE
CWE-1260
Improper Handling of Overlap Between Protected Memory Ranges
