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CVE-2026-124917 Sandbox escape due to use-after-free in the Widget: Gtk component

CriticalCVSS 9.6
Published
Updated
Exploit status
No public exploit known
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Description

Sandbox escape due to use-after-free in the Widget: Gtk component. This vulnerability was fixed in Firefox 160, Firefox ESR 153.7, Thunderbird 160, and Thunderbird 153.7.

Affected products

No affected product data has been published yet.

References