Memory safety bugs present in Firefox 136, Thunderbird 136, Firefox ESR 128.8, and Thunderbird 128.8. 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 affects Firefox < 137, Firefox ESR < 128.9, Thunderbird < 137, and Thunderbird ESR < 128.9.
This issue has been addressed in the following products: Red Hat Enterprise Linux 9 Via RHSA-2025:3556 https://access.redhat.com/errata/RHSA-2025:3556
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-2025:3581 https://access.redhat.com/errata/RHSA-2025:3581
This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2025:3582 https://access.redhat.com/errata/RHSA-2025:3582
This issue has been addressed in the following products: Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Via RHSA-2025:3587 https://access.redhat.com/errata/RHSA-2025:3587
This issue has been addressed in the following products: Red Hat Enterprise Linux 9.2 Extended Update Support Via RHSA-2025:3589 https://access.redhat.com/errata/RHSA-2025:3589
This issue has been addressed in the following products: Red Hat Enterprise Linux 9.4 Extended Update Support Via RHSA-2025:3590 https://access.redhat.com/errata/RHSA-2025:3590
This issue has been addressed in the following products: Red Hat Enterprise Linux 8.2 Advanced Update Support Via RHSA-2025:3623 https://access.redhat.com/errata/RHSA-2025:3623
This issue has been addressed in the following products: Red Hat Enterprise Linux 8.8 Extended Update Support Via RHSA-2025:3620 https://access.redhat.com/errata/RHSA-2025:3620
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-2025:3621 https://access.redhat.com/errata/RHSA-2025:3621
This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Extended Lifecycle Support Via RHSA-2025:3628 https://access.redhat.com/errata/RHSA-2025:3628
This issue has been addressed in the following products: Red Hat Enterprise Linux 9.4 Extended Update Support Via RHSA-2025:4026 https://access.redhat.com/errata/RHSA-2025:4026
This issue has been addressed in the following products: Red Hat Enterprise Linux 9.2 Extended Update Support Via RHSA-2025:4027 https://access.redhat.com/errata/RHSA-2025:4027
This issue has been addressed in the following products: Red Hat Enterprise Linux 8.8 Extended Update Support Via RHSA-2025:4029 https://access.redhat.com/errata/RHSA-2025:4029
This issue has been addressed in the following products: Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Via RHSA-2025:4028 https://access.redhat.com/errata/RHSA-2025:4028
This issue has been addressed in the following products: Red Hat Enterprise Linux 8.2 Advanced Update Support Via RHSA-2025:4032 https://access.redhat.com/errata/RHSA-2025:4032
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-2025:4031 https://access.redhat.com/errata/RHSA-2025:4031
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-2025:4030 https://access.redhat.com/errata/RHSA-2025:4030
This issue has been addressed in the following products: Red Hat Enterprise Linux 9 Via RHSA-2025:4169 https://access.redhat.com/errata/RHSA-2025:4169
This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2025:4170 https://access.redhat.com/errata/RHSA-2025:4170
This issue has been addressed in the following products: Red Hat Enterprise Linux 10 Via RHSA-2025:7491 https://access.redhat.com/errata/RHSA-2025:7491
This issue has been addressed in the following products: Red Hat Enterprise Linux 10 Via RHSA-2025:7493 https://access.redhat.com/errata/RHSA-2025:7493