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8.8 High

CVE-2022-22763 When a worker is shutdown, it was possible to cause script to run late in the lifecycle, at a point after where it…

Description

When a worker is shutdown, it was possible to cause script to run late in the lifecycle, at a point after where it should not be possible. This vulnerability affects Firefox < 96, Thunderbird < 91.6, and Firefox ESR < 91.6.

Affected products and versions

Product Affected versions Fixed in
Firefox 96 earliest → < 96 96
Thunderbird 91.6 earliest → < 91.6 91.6
Firefox ESR 91.6 earliest → < 91.6 91.6

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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