Live › vulnerability › CVE-2026-117982
Go to dashboardA bad pointer in the JIT component of Firefox's JavaScript engine was fixed in Firefox 159 and Firefox ESR 153.6. The sources do not state what an attacker gains, but invalid pointers in JIT code commonly lead to memory corruption.
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 builds older than 159 or Firefox ESR builds older than 153.6 is affected. Systems that only run other browsers or Firefox builds at or above the fixed versions can skip it. The sources do not describe the exact trigger, so whether a web page alone is enough is unknown.
No product ranges from the sources yet.
firefox --version or Help > About Firefoxfirefox --version against the ESR line159 or later153.6 or laterEach row is the first time that source carried this signal. The analyst’s rows are its own findings.
Invalid pointer in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 159 and Firefox ESR 153.6.
This page as .md · .json · in your agent: get_signal("CVE-2026-117982")
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