Live › vulnerability › CVE-2026-117953
Go to dashboardA use-after-free flaw in the DOM Core and HTML component of Firefox can corrupt memory when a page triggers it. The sources do not say what an attacker can achieve beyond that.
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 Firefox or Firefox ESR builds older than the fixed versions. The sources do not say whether specific configurations or content are needed to trigger it.
No product ranges from the sources yet.
firefox --version153.6159 or later153.6 or laterEach 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 and Firefox ESR 153.6.
This page as .md · .json · in your agent: get_signal("CVE-2026-117953")
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