CVE-2025-1931 Information

Description

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 affects Firefox < 136 Firefox ESR < 115.21 Firefox ESR < 128.8 Thunderbird < 136 and Thunderbird < 128.8.

Reference

https://bugzilla.mozilla.org/show_bug.cgi?id=1944126 https://www.mozilla.org/security/advisories/mfsa2025-14/ https://www.mozilla.org/security/advisories/mfsa2025-15/ https://www.mozilla.org/security/advisories/mfsa2025-16/ https://www.mozilla.org/security/advisories/mfsa2025-17/ https://www.mozilla.org/security/advisories/mfsa2025-18/