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, and Firefox ESR < 128.8.
This issue has been addressed in the following products: Red Hat Enterprise Linux 9 Via RHSA-2025:2359 https://access.redhat.com/errata/RHSA-2025:2359
This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2025:2452 https://access.redhat.com/errata/RHSA-2025:2452
This issue has been addressed in the following products: Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Via RHSA-2025:2481 https://access.redhat.com/errata/RHSA-2025:2481
This issue has been addressed in the following products: Red Hat Enterprise Linux 9.2 Extended Update Support Via RHSA-2025:2480 https://access.redhat.com/errata/RHSA-2025:2480
This issue has been addressed in the following products: Red Hat Enterprise Linux 9.4 Extended Update Support Via RHSA-2025:2479 https://access.redhat.com/errata/RHSA-2025:2479
This issue has been addressed in the following products: Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions Red Hat Enterprise Linux 8.6 Telecommunications Update Service Via RHSA-2025:2485 https://access.redhat.com/errata/RHSA-2025:2485
This issue has been addressed in the following products: Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions Red Hat Enterprise Linux 8.4 Telecommunications Update Service Via RHSA-2025:2484 https://access.redhat.com/errata/RHSA-2025:2484
This issue has been addressed in the following products: Red Hat Enterprise Linux 8.8 Extended Update Support Via RHSA-2025:2486 https://access.redhat.com/errata/RHSA-2025:2486
This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Extended Lifecycle Support Via RHSA-2025:2699 https://access.redhat.com/errata/RHSA-2025:2699
This issue has been addressed in the following products: Red Hat Enterprise Linux 8.2 Advanced Update Support Via RHSA-2025:2708 https://access.redhat.com/errata/RHSA-2025:2708