High 1 exploited CVE DSA-4975-1 6 CVEs

webkit2gtk - security update

Published Sep 20, 2021 · Updated Mar 9, 2026

Ecosystem: Debian

Fixed packages 2

Release	Package	Fixed in
Debian · 10	webkit2gtk	2.32.4-1~deb10u1
Debian · 11	webkit2gtk	2.32.4-1~deb11u1

Vulnerabilities 6

High 8.8

CVE-2021-30858 Exploited Public exploit EPSS 13%

A use after free issue was addressed with improved memory management. This issue is fixed in iOS 14.8 and iPadOS 14.8, …

Apple macOS iOS qtwebkit-source macOS iOS Debian Ubuntu Alpine

Aug 24, 2021
KEV Nov 3, 2021
Unscored —

CVE-2021-30809 Public exploit

A use after free issue was addressed with improved memory management. This issue is fixed in Safari 15, tvOS 15, watchO…

Apple iOS and iPadOS watchOS tvOS iOS Browsers Debian Ubuntu Alpine

Oct 28, 2021
Unscored —

CVE-2021-30836

An out-of-bounds read was addressed with improved input validation. This issue is fixed in iOS 14.8 and iPadOS 14.8, tv…

Apple iOS and iPadOS watchOS tvOS iOS Debian Ubuntu Alpine

Oct 28, 2021
Unscored —

CVE-2021-30848

A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 14.8 and iPadOS 14.8,…

Apple iOS and iPadOS Safari qtwebkit-source iOS Browsers Debian Ubuntu Alpine

Oct 19, 2021
Unscored —

CVE-2021-30849

Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in iOS 14.8 and iPa…

Apple iOS and iPadOS watchOS tvOS Windows iOS Browsers Debian Ubuntu Alpine

Oct 19, 2021
Unscored —

CVE-2021-45482

In WebKitGTK before 2.32.4, there is a use-after-free in WebCore::ContainerNode::firstChild, a different vulnerability …

qtwebkit-source qtwebkit-opensource-src webkit2gtk webkitgtk Debian Ubuntu Alpine

Dec 25, 2021