High severity8.8NVD Advisory· Published Sep 8, 2021· Updated Jun 17, 2026

CVE-2021-30749

Description

Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in tvOS 14.6, iOS 14.6 and iPadOS 14.6, Safari 14.1.1, macOS Big Sur 11.4, watchOS 7.5. Processing maliciously crafted web content may lead to arbitrary code execution.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

117

Apple Inc./macOSv52 versions
unspecified+ 1 more
- (no CPE)range: unspecified
- cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*range: >=11.0,<11.4
osv-coords103 versions
pkg:rpm/almalinux/gnome-shell-extension-launch-new-instance pkg:rpm/almalinux/gnome-shell-extension-places-menu pkg:rpm/suse/libsoup&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSS pkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015%20SP2 pkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015%20SP3 pkg:rpm/suse/webkit2gtk3&distro=SUSE%20OpenStack%20Cloud%208 pkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4 pkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-LTSS pkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5 pkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOS pkg:rpm/suse/libsoup&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSS pkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSS pkg:rpm/suse/libsoup&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-ESPOS pkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-ESPOS pkg:rpm/suse/libsoup&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSS pkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSS pkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSS pkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015 pkg:rpm/suse/libsoup&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1 pkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1 pkg:rpm/suse/libsoup&distro=SUSE%20Manager%20Retail%20Branch%20Server%204.0 pkg:rpm/suse/webkit2gtk3&distro=SUSE%20Manager%20Retail%20Branch%20Server%204.0 pkg:rpm/suse/libsoup&distro=SUSE%20Manager%20Server%204.0 pkg:rpm/suse/libsoup&distro=SUSE%20Enterprise%20Storage%206 pkg:rpm/suse/webkit2gtk3&distro=SUSE%20Enterprise%20Storage%206 pkg:rpm/suse/webkit2gtk3&distro=SUSE%20OpenStack%20Cloud%20Crowbar%208 pkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5 pkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCL pkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSS pkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCL pkg:rpm/suse/libsoup&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015 pkg:rpm/suse/libsoup&distro=SUSE%20Manager%20Proxy%204.0 pkg:rpm/almalinux/LibRaw pkg:rpm/almalinux/LibRaw-devel pkg:rpm/almalinux/accountsservice pkg:rpm/almalinux/accountsservice-devel pkg:rpm/almalinux/accountsservice-libs pkg:rpm/almalinux/gdm pkg:rpm/almalinux/gnome-autoar pkg:rpm/almalinux/gnome-calculator pkg:rpm/almalinux/gnome-classic-session pkg:rpm/almalinux/gnome-control-center pkg:rpm/almalinux/gnome-control-center-filesystem pkg:rpm/almalinux/gnome-online-accounts pkg:rpm/almalinux/gnome-online-accounts-devel pkg:rpm/almalinux/gnome-session pkg:rpm/almalinux/gnome-session-kiosk-session pkg:rpm/almalinux/gnome-session-wayland-session pkg:rpm/almalinux/gnome-session-xsession pkg:rpm/almalinux/gnome-settings-daemon pkg:rpm/almalinux/gnome-shell pkg:rpm/almalinux/gnome-shell-extension-apps-menu pkg:rpm/almalinux/gnome-shell-extension-auto-move-windows pkg:rpm/almalinux/gnome-shell-extension-common pkg:rpm/almalinux/gnome-shell-extension-dash-to-dock pkg:rpm/almalinux/gnome-shell-extension-desktop-icons pkg:rpm/almalinux/gnome-shell-extension-disable-screenshield pkg:rpm/almalinux/gnome-shell-extension-drive-menu pkg:rpm/almalinux/gnome-shell-extension-gesture-inhibitor pkg:rpm/almalinux/gnome-shell-extension-horizontal-workspaces pkg:rpm/almalinux/gnome-shell-extension-native-window-placement pkg:rpm/almalinux/gnome-shell-extension-no-hot-corner pkg:rpm/almalinux/gnome-shell-extension-panel-favorites pkg:rpm/almalinux/gnome-shell-extension-screenshot-window-sizer pkg:rpm/almalinux/gnome-shell-extension-systemMonitor pkg:rpm/almalinux/gnome-shell-extension-top-icons pkg:rpm/almalinux/gnome-shell-extension-updates-dialog pkg:rpm/almalinux/gnome-shell-extension-user-theme pkg:rpm/almalinux/gnome-shell-extension-window-grouper pkg:rpm/almalinux/gnome-shell-extension-window-list pkg:rpm/almalinux/gnome-shell-extension-windowsNavigator pkg:rpm/almalinux/gnome-shell-extension-workspace-indicator pkg:rpm/almalinux/gnome-software pkg:rpm/almalinux/gnome-software-devel pkg:rpm/almalinux/gsettings-desktop-schemas pkg:rpm/almalinux/gsettings-desktop-schemas-devel pkg:rpm/almalinux/gtk-update-icon-cache pkg:rpm/almalinux/gtk3 pkg:rpm/almalinux/gtk3-devel pkg:rpm/almalinux/gtk3-immodule-xim pkg:rpm/almalinux/mutter pkg:rpm/almalinux/mutter-devel pkg:rpm/almalinux/vino pkg:rpm/almalinux/webkit2gtk3 pkg:rpm/almalinux/webkit2gtk3-devel pkg:rpm/almalinux/webkit2gtk3-jsc pkg:rpm/almalinux/webkit2gtk3-jsc-devel pkg:rpm/suse/webkit2gtk3&distro=HPE%20Helion%20OpenStack%208 pkg:rpm/suse/webkit2gtk3&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209 pkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3 pkg:rpm/suse/libsoup&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSS pkg:rpm/suse/libsoup&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOS pkg:rpm/suse/webkit2gtk3&distro=SUSE%20Manager%20Proxy%204.0 pkg:rpm/suse/webkit2gtk3&distro=SUSE%20Manager%20Server%204.0 pkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2 pkg:rpm/suse/webkit2gtk3&distro=SUSE%20OpenStack%20Cloud%209 pkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5 pkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-BCL pkg:rpm/suse/libsoup&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-BCL pkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSS pkg:rpm/opensuse/webkit2gtk3&distro=openSUSE%20Leap%2015.2 pkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3 pkg:rpm/opensuse/webkit2gtk3&distro=openSUSE%20Leap%2015.3
< 3.32.1-20.el8+ 102 more
- (no CPE)range: < 3.32.1-20.el8
- (no CPE)range: < 3.32.1-20.el8
- (no CPE)range: < 2.62.2-17.8.1
- (no CPE)range: < 2.32.3-9.1
- (no CPE)range: < 2.32.3-9.1
- (no CPE)range: < 2.32.3-2.66.1
- (no CPE)range: < 2.32.3-2.66.1
- (no CPE)range: < 2.32.3-2.66.1
- (no CPE)range: < 2.32.3-2.66.1
- (no CPE)range: < 2.32.3-3.77.3
- (no CPE)range: < 2.62.2-17.8.1
- (no CPE)range: < 2.32.3-3.77.3
- (no CPE)range: < 2.62.2-17.8.1
- (no CPE)range: < 2.32.3-3.77.3
- (no CPE)range: < 2.62.2-17.8.1
- (no CPE)range: < 2.32.3-3.77.3
- (no CPE)range: < 2.32.3-3.77.3
- (no CPE)range: < 2.32.3-3.77.3
- (no CPE)range: < 2.62.2-17.8.1
- (no CPE)range: < 2.32.3-3.77.3
- (no CPE)range: < 2.62.2-17.8.1
- (no CPE)range: < 2.32.3-3.77.3
- (no CPE)range: < 2.62.2-17.8.1
- (no CPE)range: < 2.62.2-17.8.1
- (no CPE)range: < 2.32.3-3.77.3
- (no CPE)range: < 2.32.3-2.66.1
- (no CPE)range: < 2.32.3-2.66.1
- (no CPE)range: < 2.32.3-2.66.1
- (no CPE)range: < 2.32.3-2.66.1
- (no CPE)range: < 2.32.3-2.66.1
- (no CPE)range: < 2.62.2-17.8.1
- (no CPE)range: < 2.62.2-17.8.1
- (no CPE)range: < 0.19.5-3.el8
- (no CPE)range: < 0.19.5-3.el8
- (no CPE)range: < 0.6.55-2.el8
- (no CPE)range: < 0.6.55-2.el8
- (no CPE)range: < 0.6.55-2.el8
- (no CPE)range: < 1:40.0-15.el8
- (no CPE)range: < 0.2.3-2.el8
- (no CPE)range: < 3.28.2-2.el8
- (no CPE)range: < 3.32.1-20.el8
- (no CPE)range: < 3.28.2-28.el8
- (no CPE)range: < 3.28.2-28.el8
- (no CPE)range: < 3.28.2-3.el8
- (no CPE)range: < 3.28.2-3.el8
- (no CPE)range: < 3.28.1-13.el8
- (no CPE)range: < 3.28.1-13.el8
- (no CPE)range: < 3.28.1-13.el8
- (no CPE)range: < 3.28.1-13.el8
- (no CPE)range: < 3.32.0-16.el8.alma
- (no CPE)range: < 3.32.2-40.el8
- (no CPE)range: < 3.32.1-20.el8
- (no CPE)range: < 3.32.1-20.el8
- (no CPE)range: < 3.32.1-20.el8
- (no CPE)range: < 3.32.1-20.el8
- (no CPE)range: < 3.32.1-20.el8
- (no CPE)range: < 3.32.1-20.el8
- (no CPE)range: < 3.32.1-20.el8
- (no CPE)range: < 3.32.1-20.el8
- (no CPE)range: < 3.32.1-20.el8
- (no CPE)range: < 3.32.1-20.el8
- (no CPE)range: < 3.32.1-20.el8
- (no CPE)range: < 3.32.1-20.el8
- (no CPE)range: < 3.32.1-20.el8
- (no CPE)range: < 3.32.1-20.el8
- (no CPE)range: < 3.32.1-20.el8
- (no CPE)range: < 3.32.1-20.el8
- (no CPE)range: < 3.32.1-20.el8
- (no CPE)range: < 3.32.1-20.el8
- (no CPE)range: < 3.32.1-20.el8
- (no CPE)range: < 3.32.1-20.el8
- (no CPE)range: < 3.32.1-20.el8
- (no CPE)range: < 3.36.1-10.el8
- (no CPE)range: < 3.36.1-10.el8
- (no CPE)range: < 3.32.0-6.el8
- (no CPE)range: < 3.32.0-6.el8
- (no CPE)range: < 3.22.30-8.el8
- (no CPE)range: < 3.22.30-8.el8
- (no CPE)range: < 3.22.30-8.el8
- (no CPE)range: < 3.22.30-8.el8
- (no CPE)range: < 3.32.2-60.el8
- (no CPE)range: < 3.32.2-60.el8
- (no CPE)range: < 3.22.0-11.el8
- (no CPE)range: < 2.32.3-2.el8
- (no CPE)range: < 2.32.3-2.el8
- (no CPE)range: < 2.32.3-2.el8
- (no CPE)range: < 2.32.3-2.el8
- (no CPE)range: < 2.32.3-2.66.1
- (no CPE)range: < 2.32.3-2.66.1
- (no CPE)range: < 2.32.3-2.66.1
- (no CPE)range: < 2.62.2-17.8.1
- (no CPE)range: < 2.62.2-17.8.1
- (no CPE)range: < 2.32.3-3.77.3
- (no CPE)range: < 2.32.3-3.77.3
- (no CPE)range: < 2.32.3-9.1
- (no CPE)range: < 2.32.3-2.66.1
- (no CPE)range: < 2.32.3-2.66.1
- (no CPE)range: < 2.32.3-3.77.3
- (no CPE)range: < 2.62.2-17.8.1
- (no CPE)range: < 2.32.3-3.77.3
- (no CPE)range: < 2.32.3-lp152.2.16.1
- (no CPE)range: < 2.32.3-9.1
- (no CPE)range: < 2.32.3-9.1
Apple Inc./iOS and iPadOScpe-rescue
Range: unspecified
Apple Inc./Safarillm-fuzzy2 versions
14.1.1+ 1 more
- (no CPE)range: 14.1.1
- cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*range: <14.1.1
Apple Inc./tvOSllm-fuzzy2 versions
14.6+ 1 more
- (no CPE)range: 14.6
- cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*range: <14.6
Apple Inc./watchOSllm-fuzzy2 versions
7.5+ 1 more
- (no CPE)range: 7.5
- cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*range: <7.5
Apple Inc./iOSllm-fuzzy
Range: 14.6
Apple Inc./Ipadosllm-fuzzy2 versions
14.6+ 1 more
- (no CPE)range: 14.6
- cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*range: <14.6
Apple Inc./macOS Big Surllm-fuzzy
Range: 11.4
Apple Inc./Iphone OS
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
Range: <14.6

Patches

Vulnerability mechanics

References

support.apple.com/en-us/HT212528nvdVendor Advisory
support.apple.com/en-us/HT212529nvdVendor Advisory
support.apple.com/en-us/HT212532nvdVendor Advisory
support.apple.com/en-us/HT212533nvdVendor Advisory
support.apple.com/en-us/HT212534nvdVendor Advisory

News mentions

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exploit	0.000
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