CVE-2025-43343
WebKit: Processing maliciously crafted web content may lead to an unexpected process crash
CVE-2025-43343 is fixed in 25 products on 2 platforms, first by Tahoe 26.0, released September 15, 2025. It is not reported as exploited. Patch Radar priority: Urgent.
UrgentFixed on 2 platforms
CVSS
9.8
CRITICAL
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0080
56th percentile
The issue was addressed with improved memory handling. WebKit Bugzilla: 296490
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| macOS | |||
| Tahoe | 26.0 | Tahoe 26.0 | Sep 15, 2025 |
| Linux | |||
| gir1.2-javascriptcoregtk-4.0 · Ubuntu 22.04.1 LTS (jammy) | 2.50.1-0ubuntu0.22.04.1 | gir1.2-javascriptcoregtk-4.0 2.50.1-0ubuntu0.22.04.1 | Nov 3, 2025 |
| gir1.2-javascriptcoregtk-4.1 · Ubuntu 22.04.1 LTS (jammy) | 2.50.1-0ubuntu0.22.04.1 | gir1.2-javascriptcoregtk-4.1 2.50.1-0ubuntu0.22.04.1 | Nov 3, 2025 |
| gir1.2-javascriptcoregtk-4.1 · Ubuntu 24.04.5 LTS (noble) | 2.50.1-0ubuntu0.24.04.1 | gir1.2-javascriptcoregtk-4.1 2.50.1-0ubuntu0.24.04.1 | Nov 3, 2025 |
| gir1.2-javascriptcoregtk-4.1 · Ubuntu 25.10 (questing) | 2.50.1-0ubuntu0.25.10.1 | gir1.2-javascriptcoregtk-4.1 2.50.1-0ubuntu0.25.10.1 | Sep 15, 2025 |
| gir1.2-javascriptcoregtk-6.0 · Ubuntu 22.04.1 LTS (jammy) | 2.50.1-0ubuntu0.22.04.1 | gir1.2-javascriptcoregtk-6.0 2.50.1-0ubuntu0.22.04.1 | Nov 3, 2025 |
| gir1.2-javascriptcoregtk-6.0 · Ubuntu 24.04.5 LTS (noble) | 2.50.1-0ubuntu0.24.04.1 | gir1.2-javascriptcoregtk-6.0 2.50.1-0ubuntu0.24.04.1 | Nov 3, 2025 |
| gir1.2-javascriptcoregtk-6.0 · Ubuntu 25.10 (questing) | 2.50.1-0ubuntu0.25.10.1 | gir1.2-javascriptcoregtk-6.0 2.50.1-0ubuntu0.25.10.1 | Sep 15, 2025 |
| gir1.2-webkit-6.0 · Ubuntu 22.04.1 LTS (jammy) | 2.50.1-0ubuntu0.22.04.1 | gir1.2-webkit-6.0 2.50.1-0ubuntu0.22.04.1 | Nov 3, 2025 |
| gir1.2-webkit-6.0 · Ubuntu 24.04.5 LTS (noble) | 2.50.1-0ubuntu0.24.04.1 | gir1.2-webkit-6.0 2.50.1-0ubuntu0.24.04.1 | Nov 3, 2025 |
| gir1.2-webkit-6.0 · Ubuntu 25.10 (questing) | 2.50.1-0ubuntu0.25.10.1 | gir1.2-webkit-6.0 2.50.1-0ubuntu0.25.10.1 | Sep 15, 2025 |
| gir1.2-webkit2-4.0 · Ubuntu 22.04.1 LTS (jammy) | 2.50.1-0ubuntu0.22.04.1 | gir1.2-webkit2-4.0 2.50.1-0ubuntu0.22.04.1 | Nov 3, 2025 |
| gir1.2-webkit2-4.1 · Ubuntu 22.04.1 LTS (jammy) | 2.50.1-0ubuntu0.22.04.1 | gir1.2-webkit2-4.1 2.50.1-0ubuntu0.22.04.1 | Nov 3, 2025 |
| gir1.2-webkit2-4.1 · Ubuntu 24.04.5 LTS (noble) | 2.50.1-0ubuntu0.24.04.1 | gir1.2-webkit2-4.1 2.50.1-0ubuntu0.24.04.1 | Nov 3, 2025 |
| gir1.2-webkit2-4.1 · Ubuntu 25.10 (questing) | 2.50.1-0ubuntu0.25.10.1 | gir1.2-webkit2-4.1 2.50.1-0ubuntu0.25.10.1 | Sep 15, 2025 |
| libjavascriptcoregtk-4.0-18 · Ubuntu 22.04.1 LTS (jammy) | 2.50.1-0ubuntu0.22.04.1 | libjavascriptcoregtk-4.0-18 2.50.1-0ubuntu0.22.04.1 | Nov 3, 2025 |
| libjavascriptcoregtk-4.0-bin · Ubuntu 22.04.1 LTS (jammy) | 2.50.1-0ubuntu0.22.04.1 | libjavascriptcoregtk-4.0-bin 2.50.1-0ubuntu0.22.04.1 | Nov 3, 2025 |
| libjavascriptcoregtk-4.0-bin · Ubuntu 24.04.5 LTS (noble) | 2.50.1-0ubuntu0.24.04.1 | libjavascriptcoregtk-4.0-bin 2.50.1-0ubuntu0.24.04.1 | Nov 3, 2025 |
| libjavascriptcoregtk-4.0-bin · Ubuntu 25.10 (questing) | 2.50.1-0ubuntu0.25.10.1 | libjavascriptcoregtk-4.0-bin 2.50.1-0ubuntu0.25.10.1 | Sep 15, 2025 |
| libjavascriptcoregtk-4.1-0 · Ubuntu 22.04.1 LTS (jammy) | 2.50.1-0ubuntu0.22.04.1 | libjavascriptcoregtk-4.1-0 2.50.1-0ubuntu0.22.04.1 | Nov 3, 2025 |
| libjavascriptcoregtk-4.1-0 · Ubuntu 24.04.5 LTS (noble) | 2.50.1-0ubuntu0.24.04.1 | libjavascriptcoregtk-4.1-0 2.50.1-0ubuntu0.24.04.1 | Nov 3, 2025 |
| libjavascriptcoregtk-4.1-0 · Ubuntu 25.10 (questing) | 2.50.1-0ubuntu0.25.10.1 | libjavascriptcoregtk-4.1-0 2.50.1-0ubuntu0.25.10.1 | Sep 15, 2025 |
| libjavascriptcoregtk-6.0-1 · Ubuntu 22.04.1 LTS (jammy) | 2.50.1-0ubuntu0.22.04.1 | libjavascriptcoregtk-6.0-1 2.50.1-0ubuntu0.22.04.1 | Nov 3, 2025 |
| libjavascriptcoregtk-6.0-1 · Ubuntu 24.04.5 LTS (noble) | 2.50.1-0ubuntu0.24.04.1 | libjavascriptcoregtk-6.0-1 2.50.1-0ubuntu0.24.04.1 | Nov 3, 2025 |
| libjavascriptcoregtk-6.0-1 · Ubuntu 25.10 (questing) | 2.50.1-0ubuntu0.25.10.1 | libjavascriptcoregtk-6.0-1 2.50.1-0ubuntu0.25.10.1 | Sep 15, 2025 |
| libjavascriptcoregtk-bin · Ubuntu 24.04.5 LTS (noble) | 2.50.1-0ubuntu0.24.04.1 | libjavascriptcoregtk-bin 2.50.1-0ubuntu0.24.04.1 | Nov 3, 2025 |
| libjavascriptcoregtk-bin · Ubuntu 25.10 (questing) | 2.50.1-0ubuntu0.25.10.1 | libjavascriptcoregtk-bin 2.50.1-0ubuntu0.25.10.1 | Sep 15, 2025 |
| libwebkit2gtk-4.0-37 · Ubuntu 22.04.1 LTS (jammy) | 2.50.1-0ubuntu0.22.04.1 | libwebkit2gtk-4.0-37 2.50.1-0ubuntu0.22.04.1 | Nov 3, 2025 |
| libwebkit2gtk-4.1-0 · Ubuntu 22.04.1 LTS (jammy) | 2.50.1-0ubuntu0.22.04.1 | libwebkit2gtk-4.1-0 2.50.1-0ubuntu0.22.04.1 | Nov 3, 2025 |
| libwebkit2gtk-4.1-0 · Ubuntu 24.04.5 LTS (noble) | 2.50.1-0ubuntu0.24.04.1 | libwebkit2gtk-4.1-0 2.50.1-0ubuntu0.24.04.1 | Nov 3, 2025 |
| libwebkit2gtk-4.1-0 · Ubuntu 25.10 (questing) | 2.50.1-0ubuntu0.25.10.1 | libwebkit2gtk-4.1-0 2.50.1-0ubuntu0.25.10.1 | Sep 15, 2025 |
| libwebkitgtk-6.0-4 · Ubuntu 22.04.1 LTS (jammy) | 2.50.1-0ubuntu0.22.04.1 | libwebkitgtk-6.0-4 2.50.1-0ubuntu0.22.04.1 | Nov 3, 2025 |
| libwebkitgtk-6.0-4 · Ubuntu 24.04.5 LTS (noble) | 2.50.1-0ubuntu0.24.04.1 | libwebkitgtk-6.0-4 2.50.1-0ubuntu0.24.04.1 | Nov 3, 2025 |
| libwebkitgtk-6.0-4 · Ubuntu 25.10 (questing) | 2.50.1-0ubuntu0.25.10.1 | libwebkitgtk-6.0-4 2.50.1-0ubuntu0.25.10.1 | Sep 15, 2025 |
| webkit2gtk · Debian 12.15 (bookworm) | 2.50.1-1~deb12u1 | DEBIAN-CVE-2025-43343 | Sep 15, 2025 |
| webkit2gtk · Debian 13.5 (trixie) | 2.50.1-1~deb13u1 | DEBIAN-CVE-2025-43343 | Sep 15, 2025 |
| webkit2gtk · Debian 14 | 2.50.1-1 | DEBIAN-CVE-2025-43343 | Sep 15, 2025 |
| webkit2gtk-driver · Ubuntu 22.04.1 LTS (jammy) | 2.50.1-0ubuntu0.22.04.1 | webkit2gtk-driver 2.50.1-0ubuntu0.22.04.1 | Nov 3, 2025 |
| webkit2gtk-driver · Ubuntu 24.04.5 LTS (noble) | 2.50.1-0ubuntu0.24.04.1 | webkit2gtk-driver 2.50.1-0ubuntu0.24.04.1 | Nov 3, 2025 |
| webkit2gtk-driver · Ubuntu 25.10 (questing) | 2.50.1-0ubuntu0.25.10.1 | webkit2gtk-driver 2.50.1-0ubuntu0.25.10.1 | Sep 15, 2025 |
| webkit2gtk3 · RHEL 8 | 0:2.50.1-1.el8_10 | RHSA-2025:18070 | Oct 15, 2025 |
| webkit2gtk3 · RHEL 9 | 0:2.50.1-1.el9_7 | RHSA-2025:20922 | Nov 11, 2025 |
| webkit2gtk3 · almalinux 8 | 2.50.1-1.el8_10 | ALSA-2025:18070 | Oct 15, 2025 |
| webkit2gtk3 · almalinux 9 | 2.50.1-1.el9_7 | ALSA-2025:20922 | Nov 11, 2025 |
| webkit2gtk3 · ol 8 | 0:2.50.1-1.el8_10 | ELSA-2025-18070 | Oct 16, 2025 |
| webkit2gtk3 · ol 9 | 0:2.50.1-0.el9_6 | ELSA-2025-18097 | Oct 20, 2025 |
| webkit2gtk3 · opensuse-leap 15.6 | 2.50.1-150600.12.48.3 | SUSE-SU-2025:3701-1 | Oct 21, 2025 |
| webkit2gtk3 · opensuse-leap 16.0 | 2.50.4-160000.1.1 | OPENSUSE-SU-2026:20065-1 | Jan 20, 2026 |
| webkit2gtk3 · rocky 8 | 0:2.50.1-1.el8_10 | RLSA-2025:18070 | Oct 17, 2025 |
| webkit2gtk3 · rocky 9 | 0:2.50.1-1.el9_7 | RLSA-2025:20922 | Nov 21, 2025 |
| webkit2gtk3 · sles 15.6 | 2.50.1-150600.12.48.3 | SUSE-SU-2025:3701-1 | Oct 21, 2025 |
| webkit2gtk3 · sles 15.7 | 2.50.1-150600.12.48.3 | SUSE-SU-2025:3701-1 | Oct 21, 2025 |
| webkit2gtk3 · sles 16.0 | 2.50.4-160000.1.1 | SUSE-SU-2026:20102-1 | Jan 20, 2026 |
| webkit2gtk3-devel · RHEL 8 | 0:2.50.1-1.el8_10 | RHSA-2025:18070 | Oct 15, 2025 |
| webkit2gtk3-devel · RHEL 9 | 0:2.50.1-1.el9_7 | RHSA-2025:20922 | Nov 11, 2025 |
| webkit2gtk3-devel · almalinux 8 | 2.50.1-1.el8_10 | ALSA-2025:18070 | Oct 15, 2025 |
| webkit2gtk3-devel · almalinux 9 | 2.50.1-1.el9_7 | ALSA-2025:20922 | Nov 11, 2025 |
| webkit2gtk3-devel · ol 8 | 0:2.50.1-1.el8_10 | ELSA-2025-18070 | Oct 16, 2025 |
| webkit2gtk3-devel · ol 9 | 0:2.50.1-0.el9_6 | ELSA-2025-18097 | Oct 20, 2025 |
| webkit2gtk3-jsc · RHEL 8 | 0:2.50.1-1.el8_10 | RHSA-2025:18070 | Oct 15, 2025 |
| webkit2gtk3-jsc · RHEL 9 | 0:2.50.1-1.el9_7 | RHSA-2025:20922 | Nov 11, 2025 |
| webkit2gtk3-jsc · almalinux 8 | 2.50.1-1.el8_10 | ALSA-2025:18070 | Oct 15, 2025 |
| webkit2gtk3-jsc · almalinux 9 | 2.50.1-1.el9_7 | ALSA-2025:20922 | Nov 11, 2025 |
| webkit2gtk3-jsc · ol 8 | 0:2.50.1-1.el8_10 | ELSA-2025-18070 | Oct 16, 2025 |
| webkit2gtk3-jsc · ol 9 | 0:2.50.1-0.el9_6 | ELSA-2025-18097 | Oct 20, 2025 |
| webkit2gtk3-jsc-devel · RHEL 8 | 0:2.50.1-1.el8_10 | RHSA-2025:18070 | Oct 15, 2025 |
| webkit2gtk3-jsc-devel · RHEL 9 | 0:2.50.1-1.el9_7 | RHSA-2025:20922 | Nov 11, 2025 |
| webkit2gtk3-jsc-devel · almalinux 8 | 2.50.1-1.el8_10 | ALSA-2025:18070 | Oct 15, 2025 |
| webkit2gtk3-jsc-devel · almalinux 9 | 2.50.1-1.el9_7 | ALSA-2025:20922 | Nov 11, 2025 |
| webkit2gtk3-jsc-devel · ol 8 | 0:2.50.1-1.el8_10 | ELSA-2025-18070 | Oct 16, 2025 |
| webkit2gtk3-jsc-devel · ol 9 | 0:2.50.1-0.el9_6 | ELSA-2025-18097 | Oct 20, 2025 |
| webkit2gtk3-soup2 · opensuse-leap 15.6 | 2.50.1-150600.12.48.3 | SUSE-SU-2025:3701-1 | Oct 21, 2025 |
| webkit2gtk3-soup2 · opensuse-leap 16.0 | 2.50.4-160000.1.1 | OPENSUSE-SU-2026:20065-1 | Jan 20, 2026 |
| webkit2gtk3-soup2 · sles 15.6 | 2.50.1-150600.12.48.3 | SUSE-SU-2025:3701-1 | Oct 21, 2025 |
| webkit2gtk3-soup2 · sles 15.7 | 2.50.1-150600.12.48.3 | SUSE-SU-2025:3701-1 | Oct 21, 2025 |
| webkit2gtk4 · opensuse-leap 15.6 | 2.50.1-150600.12.48.3 | SUSE-SU-2025:3701-1 | Oct 21, 2025 |
| webkit2gtk4 · opensuse-leap 16.0 | 2.50.4-160000.1.1 | OPENSUSE-SU-2026:20065-1 | Jan 20, 2026 |
| webkit2gtk4 · sles 15.6 | 2.50.1-150600.12.48.3 | SUSE-SU-2025:3701-1 | Oct 21, 2025 |
| webkit2gtk4 · sles 15.7 | 2.50.1-150600.12.48.3 | SUSE-SU-2025:3701-1 | Oct 21, 2025 |
| webkit2gtk4 · sles 16.0 | 2.50.4-160000.1.1 | SUSE-SU-2026:20102-1 | Jan 20, 2026 |
| webkitgtk-webdriver · Ubuntu 25.10 (questing) | 2.50.1-0ubuntu0.25.10.1 | webkitgtk-webdriver 2.50.1-0ubuntu0.25.10.1 | Sep 15, 2025 |
| wpewebkit · Debian 14 | 2.50.1-1 | DEBIAN-CVE-2025-43343 | Sep 15, 2025 |
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