CVE-2026-124906 · Runtime
NO FIX YET · SEE WHAT TO DO
Firefox's WebRender graphics component has a use-after-free bug, where memory is used after it has been released. The sources do not state what an attacker can get from it beyond that memory corruption.
first public Nov 10, 2026 · 1 source
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Installations of Firefox older than version 160 or Firefox ESR older than 153.7 are affected. The sources do not say whether any specific configuration is required to reach the bug, so unknown.
Not affected if running-firefox-160-or-later, running-firefox-esr-153.7-or-later
Who cares browser, desktop, firefox
firefox --version on the command line.160153.7Use-after-free in the Graphics: WebRender component. This vulnerability was fixed in Firefox 160 and Firefox ESR 153.7.
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