Live › vulnerability › CVE-2026-117981
Go to dashboardA flaw in the Firefox Toolkit component allows privilege escalation. Mozilla fixed it in Firefox 159 and Firefox ESR 153.6, and the sources do not say what an attacker gets 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.
Teams that run Firefox or Firefox ESR on desktops or managed fleets are affected on versions before the fixed releases. The sources do not say which configurations or sites trigger the flaw. unknown for who can skip it.
No product ranges from the sources yet.
firefox --version or open Help > About Firefox and compare against 159 or 153.6159 or Firefox ESR to 153.6Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
Privilege escalation in the Toolkit component. This vulnerability was fixed in Firefox 159 and Firefox ESR 153.6.
This page as .md · .json · in your agent: get_signal("CVE-2026-117981")
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