Memory corruption in WPE WebKit and WebKitGTK+ - CVE-2025-43343

Vulnerability identifier: #VU115324

CSH Severity: Low

CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2025-43343

CWE-ID: CWE-119

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in WebKit. A remote attacker can trick the victim into opening a specially crafted website and crash the browser. 

WPE WebKit
WebKitGTK+
SUSE Manager Retail Branch Server 4.3
SUSE Manager Server 4.3
Debian Linux
SUSE Linux Enterprise Server 12 SP5
SUSE Linux Enterprise Server 12 SP5 LTSS Extended
SUSE Linux Enterprise Server 15 SP4
SUSE Linux Enterprise Server 15 SP5
SUSE Manager Proxy 4.3
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Desktop 15
visionOS
SUSE Manager Server
SUSE Manager Proxy
SUSE Manager Retail Branch Server
Anolis OS
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux Server - TUS
Fedora
watchOS
Development Tools Module
Desktop Applications Module
Basesystem Module
openSUSE Leap
tvOS
Ubuntu
macOS
Apple iOS
iPadOS
IBM Observability with Instana
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
webkit2gtk3 (Red Hat package)
webkit2gtk (Ubuntu package)
webkitgtk4-doc
webkitgtk4
webkitgtk4-devel
webkitgtk4-jsc
webkitgtk4-jsc-devel
webkitgtk4 (Red Hat package)
webkitgtk
webkit2gtk (Debian package)
webkit2gtk3
webkit2gtk3-devel
webkit2gtk3-jsc
webkit2gtk3-jsc-devel
typelib-1_0-WebKit2-4_0
typelib-1_0-WebKit2WebExtension-4_0
libwebkit2gtk-4_0-37-debuginfo
webkit2gtk-4_0-injected-bundles
webkit2gtk-4_0-injected-bundles-debuginfo
libwebkit2gtk3-lang
libwebkit2gtk-4_0-37
webkit2gtk3-debugsource
libjavascriptcoregtk-4_0-18
libjavascriptcoregtk-4_0-18-debuginfo
typelib-1_0-JavaScriptCore-4_0
libwebkit2gtk-4_0-37-32bit
libwebkit2gtk-4_1-0-64bit
libwebkit2gtk-4_1-0-32bit-debuginfo
libwebkit2gtk-4_1-0-32bit
libjavascriptcoregtk-4_1-0-32bit-debuginfo
libjavascriptcoregtk-4_0-18-32bit-debuginfo
libwebkit2gtk-4_0-37-32bit-debuginfo
webkit2gtk3-soup2-devel
webkit2gtk4-minibrowser
libjavascriptcoregtk-4_1-0-32bit
libjavascriptcoregtk-4_1-0-64bit
libjavascriptcoregtk-4_0-18-64bit-debuginfo
libwebkit2gtk-4_0-37-64bit
libwebkit2gtk-4_0-37-64bit-debuginfo
libjavascriptcoregtk-4_1-0-64bit-debuginfo
libjavascriptcoregtk-4_0-18-64bit
libwebkit2gtk-4_1-0-64bit-debuginfo
libjavascriptcoregtk-4_0-18-32bit
libwebkit2gtk-4_1-0-debuginfo
webkit2gtk3-soup2-minibrowser-debuginfo
libjavascriptcoregtk-6_0-1-debuginfo
webkit2gtk-4_1-injected-bundles-debuginfo
libjavascriptcoregtk-4_1-0-debuginfo
webkit2gtk4-devel
webkitgtk-6_0-injected-bundles
libjavascriptcoregtk-6_0-1
webkit-jsc-4.1
webkit2gtk-4_1-injected-bundles
webkit2gtk4-debugsource
webkit-jsc-4
typelib-1_0-JavaScriptCore-6_0
webkit2gtk3-minibrowser-debuginfo
webkit-jsc-4.1-debuginfo
WebKitGTK-4.0-lang
WebKitGTK-6.0-lang
WebKitGTK-4.1-lang
typelib-1_0-WebKitWebProcessExtension-6_0
webkit2gtk3-soup2-debugsource
webkitgtk-6_0-injected-bundles-debuginfo
webkit-jsc-4-debuginfo
webkit2gtk4-minibrowser-debuginfo
typelib-1_0-JavaScriptCore-4_1
typelib-1_0-WebKit2WebExtension-4_1
libwebkitgtk-6_0-4
typelib-1_0-WebKit2-4_1
webkit2gtk3-minibrowser
libwebkit2gtk-4_1-0
libwebkitgtk-6_0-4-debuginfo
webkit-jsc-6.0-debuginfo
libjavascriptcoregtk-4_1-0
webkit2gtk3-soup2-minibrowser
typelib-1_0-WebKit-6_0
webkit-jsc-6.0
Apple Safari

Install update from vendor's website.

WPE WebKit - update to 2.50.1
WebKitGTK+ - update to 2.50.1
visionOS - update to 26.0 23M336
IBM Observability with Instana - update to 1.0.309
watchOS - update to 26.0 23R352
tvOS - update to 26.0 23J353
macOS - update to 26.0 25A354
Apple iOS - update to 26.0 23A341
iPadOS - update to 26.0 23A341
webkit2gtk3 (Red Hat package) - addressed in versions 2.50.1-0.el9_6, 2.50.1-1.el8_2, 2.50.1-1.el8_4, 2.50.1-1.el8_6, 2.50.1-1.el8_8, 2.50.1-1.el8_10, 2.50.1-1.el9_0
webkit2gtk (Ubuntu package) - addressed in versions 2.50.1-0ubuntu0.22.04.1, 2.50.1-0ubuntu0.24.04.1, 2.50.1-0ubuntu0.25.04.2, 2.50.1-0ubuntu0.25.10.1
webkitgtk4-doc - update to 2.50.1-1
webkitgtk4 - update to 2.50.1-1
webkitgtk4-devel - update to 2.50.1-1
webkitgtk4-jsc - update to 2.50.1-1
webkitgtk4-jsc-devel - update to 2.50.1-1
webkitgtk4 (Red Hat package) - update to 2.50.1-1.el7_9
webkitgtk - addressed in versions 2.50.1-1.fc41, 2.50.1-1.fc42, 2.50.1-1.fc43, 2.50.1-2.el10_1
webkit2gtk (Debian package) - addressed in versions 2.50.1-1~deb12u1, 2.50.1-1~deb13u1
webkit2gtk3 - update to 2.50.1-1.0.1
webkit2gtk3-devel - update to 2.50.1-1.0.1
webkit2gtk3-jsc - update to 2.50.1-1.0.1
webkit2gtk3-jsc-devel - update to 2.50.1-1.0.1
typelib-1_0-WebKit2-4_0 - addressed in versions 2.50.1-4.44.1, 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
typelib-1_0-WebKit2WebExtension-4_0 - addressed in versions 2.50.1-4.44.1, 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
libwebkit2gtk-4_0-37-debuginfo - addressed in versions 2.50.1-4.44.1, 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
webkit2gtk-4_0-injected-bundles - addressed in versions 2.50.1-4.44.1, 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
webkit2gtk-4_0-injected-bundles-debuginfo - addressed in versions 2.50.1-4.44.1, 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
libwebkit2gtk3-lang - update to 2.50.1-4.44.1
libwebkit2gtk-4_0-37 - addressed in versions 2.50.1-4.44.1, 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
webkit2gtk3-debugsource - addressed in versions 2.50.1-4.44.1, 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
webkit2gtk3-devel - addressed in versions 2.50.1-4.44.1, 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
libjavascriptcoregtk-4_0-18 - addressed in versions 2.50.1-4.44.1, 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
libjavascriptcoregtk-4_0-18-debuginfo - addressed in versions 2.50.1-4.44.1, 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
typelib-1_0-JavaScriptCore-4_0 - addressed in versions 2.50.1-4.44.1, 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
libwebkit2gtk-4_0-37-32bit - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
libwebkit2gtk-4_1-0-64bit - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
libwebkit2gtk-4_1-0-32bit-debuginfo - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
libwebkit2gtk-4_1-0-32bit - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
libjavascriptcoregtk-4_1-0-32bit-debuginfo - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
libjavascriptcoregtk-4_0-18-32bit-debuginfo - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
libwebkit2gtk-4_0-37-32bit-debuginfo - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
webkit2gtk3-soup2-devel - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
webkit2gtk4-minibrowser - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
libjavascriptcoregtk-4_1-0-32bit - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
libjavascriptcoregtk-4_1-0-64bit - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
libjavascriptcoregtk-4_0-18-64bit-debuginfo - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
libwebkit2gtk-4_0-37-64bit - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
libwebkit2gtk-4_0-37-64bit-debuginfo - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
libjavascriptcoregtk-4_1-0-64bit-debuginfo - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
libjavascriptcoregtk-4_0-18-64bit - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
libwebkit2gtk-4_1-0-64bit-debuginfo - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
libjavascriptcoregtk-4_0-18-32bit - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
libwebkit2gtk-4_1-0-debuginfo - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
webkit2gtk3-soup2-minibrowser-debuginfo - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
libjavascriptcoregtk-6_0-1-debuginfo - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
webkit2gtk-4_1-injected-bundles-debuginfo - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
libjavascriptcoregtk-4_1-0-debuginfo - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
webkit2gtk4-devel - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
webkitgtk-6_0-injected-bundles - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
libjavascriptcoregtk-6_0-1 - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
webkit-jsc-4.1 - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
webkit2gtk-4_1-injected-bundles - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
webkit2gtk4-debugsource - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
webkit-jsc-4 - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
typelib-1_0-JavaScriptCore-6_0 - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
webkit2gtk3-minibrowser-debuginfo - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
webkit-jsc-4.1-debuginfo - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
WebKitGTK-4.0-lang - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
WebKitGTK-6.0-lang - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
WebKitGTK-4.1-lang - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
typelib-1_0-WebKitWebProcessExtension-6_0 - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
webkit2gtk3-soup2-debugsource - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
webkitgtk-6_0-injected-bundles-debuginfo - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
webkit-jsc-4-debuginfo - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
webkit2gtk4-minibrowser-debuginfo - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
typelib-1_0-JavaScriptCore-4_1 - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
typelib-1_0-WebKit2WebExtension-4_1 - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
libwebkitgtk-6_0-4 - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
typelib-1_0-WebKit2-4_1 - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
webkit2gtk3-minibrowser - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
libwebkit2gtk-4_1-0 - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
libwebkitgtk-6_0-4-debuginfo - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
webkit-jsc-6.0-debuginfo - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
libjavascriptcoregtk-4_1-0 - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
webkit2gtk3-soup2-minibrowser - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
typelib-1_0-WebKit-6_0 - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
webkit-jsc-6.0 - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3
Apple Safari - update to 26.0

• https://support.apple.com/en-us/125110
• https://webkitgtk.org/security/WSA-2025-0007.html

• Multiple vulnerabilities in WebKitGTK+ and WPE WebKit
• Multiple vulnerabilities in Apple Safari
• Multiple vulnerabilities in Apple macOS Tahoe
• Multiple vulnerabilities in Apple iOS 26 and iPadOS 26
• Multiple vulnerabilities in Apple watchOS
• Multiple vulnerabilities in Apple visionOS
• Multiple vulnerabilities in Apple tvOS
• Red Hat Enterprise Linux 9 update for webkit2gtk3
• Fedora EPEL 10.1 update for webkitgtk
• Anolis OS update for webkit2gtk3
• SUSE update for webkit2gtk3
• SUSE update for webkit2gtk3
• Debian update for webkit2gtk
• Red Hat Enterprise Linux 8 update for webkit2gtk3
• SUSE update for webkit2gtk3
• Fedora 41 update for webkitgtk
• Fedora 42 update for webkitgtk
• Fedora 43 update for webkitgtk
• Red Hat Enterprise Linux 9 update for webkit2gtk3
• Red Hat Enterprise Linux 8 update for webkit2gtk3
• Red Hat Enterprise Linux 8 update for webkit2gtk3
• Red Hat Enterprise Linux 8 update for webkit2gtk3
• Red Hat Enterprise Linux 7 Extended Lifecycle Support update for webkitgtk4
• Red Hat Enterprise Linux 8 update for webkit2gtk3
• Ubuntu update for webkit2gtk
• Multiple vulnerabilities in IBM Observability with Instana
• Anolis OS update for webkitgtk4