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CVE-2016-9899 Use-after-free while manipulating DOM events and removing audio elements due to errors in the handling of node adoption

Description

Use-after-free while manipulating DOM events and removing audio elements due to errors in the handling of node adoption. This vulnerability affects Firefox < 50.1, Firefox ESR < 45.6, and Thunderbird < 45.6.

Affected products and versions

Product Affected versions Fixed in
Firefox 50.1 earliest → < 50.1 50.1
Firefox ESR 45.6 earliest → < 45.6 45.6
Thunderbird 45.6 earliest → < 45.6 45.6

Other CVEs of Firefox

The 2221 CVEs of Firefox →
CVE-2026-120572 Incorrect boundary conditions in the Layout: Block and Inline component 8.8 High CVE-2026-118027 Frame poisoning in the Layout component 9.1 Critical CVE-2026-118026 Invalid pointer in the JavaScript: GC component 8.8 High CVE-2026-118025 Other issue in the SVG component 8.8 High
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