Buffer overflow in WebKitGTK+ and WPE WebKit - CVE-2025-43429

Vulnerability identifier: #VU117969

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-2025-43429

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 visiting a specially crafted website, trigger memory corruption and crash the browser.

WebKitGTK+
WPE WebKit
SUSE Manager Server 4.3
SUSE Manager Retail Branch Server 4.3
SUSE Manager Proxy 4.3
SUSE Linux Enterprise Server 12 SP5 LTSS Extended
SUSE Linux Enterprise Server 12 SP5
Debian Linux
SUSE Linux Enterprise Server 15 SP5
SUSE Linux Enterprise Server 15 SP6
SUSE Linux Enterprise Server 15 SP4
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise High Performance Computing 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 Retail Branch Server
SUSE Manager Proxy
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
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Enterprise Linux for x86_64 - Extended Update Support
Desktop Applications Module
Basesystem Module
Development Tools Module
openSUSE Leap
tvOS
iPadOS
Apple iOS
Ubuntu
macOS
watchOS
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
webkit2gtk (Ubuntu package)
webkit2gtk (Debian package)
webkitgtk6.0-doc
javascriptcoregtk4.1-devel
javascriptcoregtk4.1
javascriptcoregtk6.0-devel
javascriptcoregtk6.0
webkit2gtk4.1-doc
webkitgtk6.0-devel
webkitgtk6.0
webkit2gtk4.1
webkit2gtk4.1-devel
webkit2gtk3 (Red Hat package)
webkit2gtk3
webkit2gtk3-devel
webkit2gtk3-jsc
webkit2gtk3-jsc-devel
webkitgtk4 (Red Hat package)
webkit2gtk-4_0-injected-bundles-debuginfo
typelib-1_0-WebKit2WebExtension-4_0
libwebkit2gtk-4_0-37-debuginfo
libjavascriptcoregtk-4_0-18
libwebkit2gtk-4_0-37
webkit2gtk-4_0-injected-bundles
webkit2gtk3-debugsource
typelib-1_0-JavaScriptCore-4_0
typelib-1_0-WebKit2-4_0
libjavascriptcoregtk-4_0-18-debuginfo
libwebkit2gtk3-lang
libwebkitgtk-6_0-4
libjavascriptcoregtk-6_0-1
webkit2gtk-4_1-injected-bundles-debuginfo
WebKitGTK-6.0-lang
WebKitGTK-4.1-lang
WebKitGTK-4.0-lang
libwebkit2gtk-4_1-0
libwebkit2gtk-4_1-0-debuginfo
libjavascriptcoregtk-4_1-0
webkit2gtk3-soup2-debugsource
webkit2gtk4-debugsource
libjavascriptcoregtk-6_0-1-debuginfo
webkitgtk-6_0-injected-bundles
typelib-1_0-WebKit2-4_1
libjavascriptcoregtk-4_1-0-debuginfo
webkit2gtk3-soup2-devel
webkit2gtk-4_1-injected-bundles
libwebkitgtk-6_0-4-debuginfo
typelib-1_0-WebKit2WebExtension-4_1
typelib-1_0-JavaScriptCore-4_1
libjavascriptcoregtk-4_0-18-32bit
webkit2gtk3-minibrowser
webkit2gtk4-minibrowser-debuginfo
webkit2gtk3-soup2-minibrowser-debuginfo
webkit-jsc-6.0-debuginfo
webkit-jsc-4
webkit-jsc-4-debuginfo
webkit-jsc-4.1
webkit-jsc-4.1-debuginfo
webkit2gtk4-minibrowser
webkit2gtk3-minibrowser-debuginfo
webkit-jsc-6.0
webkit2gtk3-soup2-minibrowser
webkitgtk-6_0-injected-bundles-debuginfo
libwebkit2gtk-4_0-37-32bit-debuginfo
libjavascriptcoregtk-4_1-0-32bit
libwebkit2gtk-4_0-37-32bit
libwebkit2gtk-4_1-0-32bit
libjavascriptcoregtk-4_0-18-32bit-debuginfo
libjavascriptcoregtk-4_1-0-32bit-debuginfo
libwebkit2gtk-4_1-0-32bit-debuginfo
libwebkit2gtk-4_1-0-64bit-debuginfo
libjavascriptcoregtk-4_1-0-64bit
libwebkit2gtk-4_0-37-64bit
libwebkit2gtk-4_1-0-64bit
libjavascriptcoregtk-4_0-18-64bit-debuginfo
libjavascriptcoregtk-4_0-18-64bit
libjavascriptcoregtk-4_1-0-64bit-debuginfo
libwebkit2gtk-4_0-37-64bit-debuginfo
typelib-1_0-JavaScriptCore-6_0
typelib-1_0-WebKitWebProcessExtension-6_0
typelib-1_0-WebKit-6_0
webkit2gtk4-devel
Apple Safari

Install updates from vendor's website.

WebKitGTK+ - update to 2.50.2
WPE WebKit - update to 2.50.2
visionOS - update to 26.1
Apple Safari - update to 26.1
tvOS - update to 26.1 23J580
iPadOS - addressed in versions 18.7.2 22H124, 26.1 23B85
Apple iOS - addressed in versions 18.7.2 22H124, 26.1 23B85
macOS - update to 26.1 25B78
watchOS - update to 26.1 23S37
webkit2gtk (Ubuntu package) - addressed in versions 2.50.2-0ubuntu0.22.04.2, 2.50.2-0ubuntu0.24.04.2, 2.50.2-0ubuntu0.25.04.2, 2.50.2-0ubuntu0.25.10.2
webkit2gtk (Debian package) - addressed in versions 2.50.2-1~deb12u1, 2.50.2-1~deb13u1
webkitgtk6.0-doc - addressed in versions 2.50.3-1, 2.50.5-1
javascriptcoregtk4.1-devel - addressed in versions 2.50.3-1, 2.50.5-1
javascriptcoregtk4.1 - addressed in versions 2.50.3-1, 2.50.5-1
javascriptcoregtk6.0-devel - addressed in versions 2.50.3-1, 2.50.5-1
javascriptcoregtk6.0 - addressed in versions 2.50.3-1, 2.50.5-1
webkit2gtk4.1-doc - addressed in versions 2.50.3-1, 2.50.5-1
webkitgtk6.0-devel - addressed in versions 2.50.3-1, 2.50.5-1
webkitgtk6.0 - addressed in versions 2.50.3-1, 2.50.5-1
webkit2gtk4.1 - addressed in versions 2.50.3-1, 2.50.5-1
webkit2gtk4.1-devel - addressed in versions 2.50.3-1, 2.50.5-1
webkit2gtk3 (Red Hat package) - addressed in versions 2.50.3-1.el8_10, 2.50.3-1.el9_2, 2.50.3-1.el9_4, 2.50.3-1.el9_6, 2.50.3-1.el9_7, 2.50.3-2.el8_2, 2.50.3-2.el8_4, 2.50.3-2.el8_6, 2.50.3-2.el8_8
webkit2gtk3 - update to 2.50.3-1.0.1
webkit2gtk3-devel - update to 2.50.3-1.0.1
webkit2gtk3-jsc - update to 2.50.3-1.0.1
webkit2gtk3-jsc-devel - update to 2.50.3-1.0.1
webkitgtk4 (Red Hat package) - update to 2.50.3-2.el7_9
webkit2gtk-4_0-injected-bundles-debuginfo - addressed in versions 2.50.3-4.47.1, 2.50.3-150400.4.130.4, 2.50.4-150600.12.54.1
typelib-1_0-WebKit2WebExtension-4_0 - addressed in versions 2.50.3-4.47.1, 2.50.3-150400.4.130.4, 2.50.4-150600.12.54.1
libwebkit2gtk-4_0-37-debuginfo - addressed in versions 2.50.3-4.47.1, 2.50.3-150400.4.130.4, 2.50.4-150600.12.54.1
webkit2gtk3-devel - addressed in versions 2.50.3-4.47.1, 2.50.3-150400.4.130.4, 2.50.4-150600.12.54.1
libjavascriptcoregtk-4_0-18 - addressed in versions 2.50.3-4.47.1, 2.50.3-150400.4.130.4, 2.50.4-150600.12.54.1
libwebkit2gtk-4_0-37 - addressed in versions 2.50.3-4.47.1, 2.50.3-150400.4.130.4, 2.50.4-150600.12.54.1
webkit2gtk-4_0-injected-bundles - addressed in versions 2.50.3-4.47.1, 2.50.3-150400.4.130.4, 2.50.4-150600.12.54.1
webkit2gtk3-debugsource - addressed in versions 2.50.3-4.47.1, 2.50.3-150400.4.130.4, 2.50.4-150600.12.54.1
typelib-1_0-JavaScriptCore-4_0 - addressed in versions 2.50.3-4.47.1, 2.50.3-150400.4.130.4, 2.50.4-150600.12.54.1
typelib-1_0-WebKit2-4_0 - addressed in versions 2.50.3-4.47.1, 2.50.3-150400.4.130.4, 2.50.4-150600.12.54.1
libjavascriptcoregtk-4_0-18-debuginfo - addressed in versions 2.50.3-4.47.1, 2.50.3-150400.4.130.4, 2.50.4-150600.12.54.1
libwebkit2gtk3-lang - update to 2.50.3-4.47.1
libwebkitgtk-6_0-4 - addressed in versions 2.50.3-150400.4.130.4, 2.50.4-150600.12.54.1
libjavascriptcoregtk-6_0-1 - addressed in versions 2.50.3-150400.4.130.4, 2.50.4-150600.12.54.1
webkit2gtk-4_1-injected-bundles-debuginfo - addressed in versions 2.50.3-150400.4.130.4, 2.50.4-150600.12.54.1
WebKitGTK-6.0-lang - addressed in versions 2.50.3-150400.4.130.4, 2.50.4-150600.12.54.1
WebKitGTK-4.1-lang - addressed in versions 2.50.3-150400.4.130.4, 2.50.4-150600.12.54.1
WebKitGTK-4.0-lang - addressed in versions 2.50.3-150400.4.130.4, 2.50.4-150600.12.54.1
libwebkit2gtk-4_1-0 - addressed in versions 2.50.3-150400.4.130.4, 2.50.4-150600.12.54.1
libwebkit2gtk-4_1-0-debuginfo - addressed in versions 2.50.3-150400.4.130.4, 2.50.4-150600.12.54.1
libjavascriptcoregtk-4_1-0 - addressed in versions 2.50.3-150400.4.130.4, 2.50.4-150600.12.54.1
webkit2gtk3-soup2-debugsource - addressed in versions 2.50.3-150400.4.130.4, 2.50.4-150600.12.54.1
webkit2gtk4-debugsource - addressed in versions 2.50.3-150400.4.130.4, 2.50.4-150600.12.54.1
libjavascriptcoregtk-6_0-1-debuginfo - addressed in versions 2.50.3-150400.4.130.4, 2.50.4-150600.12.54.1
webkitgtk-6_0-injected-bundles - addressed in versions 2.50.3-150400.4.130.4, 2.50.4-150600.12.54.1
typelib-1_0-WebKit2-4_1 - addressed in versions 2.50.3-150400.4.130.4, 2.50.4-150600.12.54.1
libjavascriptcoregtk-4_1-0-debuginfo - addressed in versions 2.50.3-150400.4.130.4, 2.50.4-150600.12.54.1
webkit2gtk3-soup2-devel - addressed in versions 2.50.3-150400.4.130.4, 2.50.4-150600.12.54.1
webkit2gtk-4_1-injected-bundles - addressed in versions 2.50.3-150400.4.130.4, 2.50.4-150600.12.54.1
libwebkitgtk-6_0-4-debuginfo - addressed in versions 2.50.3-150400.4.130.4, 2.50.4-150600.12.54.1
typelib-1_0-WebKit2WebExtension-4_1 - addressed in versions 2.50.3-150400.4.130.4, 2.50.4-150600.12.54.1
typelib-1_0-JavaScriptCore-4_1 - addressed in versions 2.50.3-150400.4.130.4, 2.50.4-150600.12.54.1
libjavascriptcoregtk-4_0-18-32bit - update to 2.50.4-150600.12.54.1
webkit2gtk3-minibrowser - update to 2.50.4-150600.12.54.1
webkit2gtk4-minibrowser-debuginfo - update to 2.50.4-150600.12.54.1
webkit2gtk3-soup2-minibrowser-debuginfo - update to 2.50.4-150600.12.54.1
webkit-jsc-6.0-debuginfo - update to 2.50.4-150600.12.54.1
webkit-jsc-4 - update to 2.50.4-150600.12.54.1
webkit-jsc-4-debuginfo - update to 2.50.4-150600.12.54.1
webkit-jsc-4.1 - update to 2.50.4-150600.12.54.1
webkit-jsc-4.1-debuginfo - update to 2.50.4-150600.12.54.1
webkit2gtk4-minibrowser - update to 2.50.4-150600.12.54.1
webkit2gtk3-minibrowser-debuginfo - update to 2.50.4-150600.12.54.1
webkit-jsc-6.0 - update to 2.50.4-150600.12.54.1
webkit2gtk3-soup2-minibrowser - update to 2.50.4-150600.12.54.1
webkitgtk-6_0-injected-bundles-debuginfo - update to 2.50.4-150600.12.54.1
libwebkit2gtk-4_0-37-32bit-debuginfo - update to 2.50.4-150600.12.54.1
libjavascriptcoregtk-4_1-0-32bit - update to 2.50.4-150600.12.54.1
libwebkit2gtk-4_0-37-32bit - update to 2.50.4-150600.12.54.1
libwebkit2gtk-4_1-0-32bit - update to 2.50.4-150600.12.54.1
libjavascriptcoregtk-4_0-18-32bit-debuginfo - update to 2.50.4-150600.12.54.1
libjavascriptcoregtk-4_1-0-32bit-debuginfo - update to 2.50.4-150600.12.54.1
libwebkit2gtk-4_1-0-32bit-debuginfo - update to 2.50.4-150600.12.54.1
libwebkit2gtk-4_1-0-64bit-debuginfo - update to 2.50.4-150600.12.54.1
libjavascriptcoregtk-4_1-0-64bit - update to 2.50.4-150600.12.54.1
libwebkit2gtk-4_0-37-64bit - update to 2.50.4-150600.12.54.1
libwebkit2gtk-4_1-0-64bit - update to 2.50.4-150600.12.54.1
libjavascriptcoregtk-4_0-18-64bit-debuginfo - update to 2.50.4-150600.12.54.1
libjavascriptcoregtk-4_0-18-64bit - update to 2.50.4-150600.12.54.1
libjavascriptcoregtk-4_1-0-64bit-debuginfo - update to 2.50.4-150600.12.54.1
libwebkit2gtk-4_0-37-64bit-debuginfo - update to 2.50.4-150600.12.54.1
typelib-1_0-JavaScriptCore-6_0 - update to 2.50.4-150600.12.54.1
typelib-1_0-WebKitWebProcessExtension-6_0 - update to 2.50.4-150600.12.54.1
typelib-1_0-WebKit-6_0 - update to 2.50.4-150600.12.54.1
webkit2gtk4-devel - update to 2.50.4-150600.12.54.1

• https://support.apple.com/en-us/125634
• https://webkitgtk.org/security/WSA-2025-0008.html

• Multiple vulnerabilities in WebKitGTK+ and WPE WebKit
• Multiple vulnerabilities in Apple Safari
• Multiple vulnerabilities in Apple macOS Tahoe
• Multiple vulnerabilities in Apple tvOS
• Multiple vulnerabilities in Apple iOS 26 and iPadOS 26
• Multiple vulnerabilities in Apple visionOS
• Multiple vulnerabilities in Apple watchOS
• Multiple vulnerabilities in Apple iOS 18 and iPadOS 18
• Debian update for webkit2gtk
• Red Hat Enterprise Linux 8 update for webkit2gtk3
• Red Hat Enterprise Linux 9 update for webkit2gtk3
• Ubuntu update for webkit2gtk
• Red Hat Enterprise Linux 9 update for webkit2gtk3
• Anolis OS update for webkit2gtk3
• SUSE update for webkit2gtk3
• Red Hat Enterprise Linux 8 update for webkit2gtk3
• Red Hat Enterprise Linux 8 update for webkit2gtk3
• Red Hat Enterprise Linux 9 update for webkit2gtk3
• SUSE update for webkit2gtk3
• Red Hat Enterprise Linux 9 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
• SUSE update for webkit2gtk3
• Anolis OS update for webkitgtk
• Anolis OS update for webkitgtk