Live › vulnerability › CVE-2026-117925
Go to dashboardFirefox has a use-after-free bug in its DOM Core and HTML component, where memory is used after it has been freed. The sources say it was fixed in Firefox 159, Firefox ESR 115.44 and Firefox ESR 153.6, but they do not state the attacker's exact gain.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-27 14:32 UTC. All times on this page are UTC.
Anyone running a Firefox build older than the fixed releases on a desktop or managed machine. The sources do not say which configurations are exposed beyond the affected versions, so the browser's default setup is assumed to be in scope. unknown for whether a specific setting narrows exposure.
No product ranges from the sources yet.
firefox --version (or check About Firefox) and compare against 159, 115.44 or 153.6 for ESR builds159 or later115.44 or 153.6Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, and Firefox ESR 153.6.
This page as .md · .json · in your agent: get_signal("CVE-2026-117925")
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