It was possible to cause a use-after-free in the content process side of a WebTransport connection, leading to a potentially exploitable crash. 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/show_bug.cgi?id=1944126 | Issue Tracking |
| 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 |
| https://lists.debian.org/debian-lts-announce/2025/03/msg00006.html |
Configurations
Configuration 1 (hide)
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History
05 Oct 2026, 15:10
| Type | Values Removed | Values Added |
|---|---|---|
| Summary | (es) Se pudo provocar un use-after-free en el lado del proceso de contenido de una conexión WebTransport, lo que provocó un bloqueo potencialmente explotable. 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, 19:10
| Type | Values Removed | Values Added |
|---|---|---|
| Summary | (es) Se pudo provocar un use-after-free en el lado del proceso de contenido de una conexión WebTransport, lo que provocó un bloqueo potencialmente explotable. 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-2025-1931
Mitre link : CVE-2025-1931
CVE.ORG link : CVE-2025-1931
JSON object : View
Products Affected
mozilla
- firefox
- thunderbird
CWE
CWE-416
Use After Free