The issue was addressed with improved memory handling. This issue is fixed in Safari 18.6, iOS 18.6 and iPadOS 18.6, macOS Sequoia 15.6, tvOS 18.6, visionOS 2.6, watchOS 11.6. Processing maliciously crafted web content may lead to an unexpected Safari crash.
https://support.apple.com/en-us/124155
https://support.apple.com/en-us/124154
https://support.apple.com/en-us/124153
https://support.apple.com/en-us/124152
https://support.apple.com/en-us/124149
https://support.apple.com/en-us/124147
https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-43213.json
https://bugzilla.redhat.com/show_bug.cgi?id=2448781
https://access.redhat.com/security/cve/CVE-2025-43213
https://access.redhat.com/errata/RHSA-2026:9692
https://access.redhat.com/errata/RHSA-2026:22136
https://access.redhat.com/errata/RHSA-2026:19535
https://access.redhat.com/errata/RHSA-2026:19206
https://access.redhat.com/errata/RHSA-2026:16695
https://access.redhat.com/errata/RHSA-2026:16056
https://access.redhat.com/errata/RHSA-2026:14659
https://access.redhat.com/errata/RHSA-2026:13845
https://access.redhat.com/errata/RHSA-2026:11814
https://access.redhat.com/errata/RHSA-2026:11329
https://access.redhat.com/errata/RHSA-2026:10702
http://seclists.org/fulldisclosure/2025/Jul/36
http://seclists.org/fulldisclosure/2025/Jul/32