CVE-2026-124888 · Other
NO FIX YET · SEE WHAT TO DO
Firefox's Layout: Text and Fonts component has incorrect boundary conditions, a memory-safety style flaw. The sources do not say what an attacker can gain from it.
first public Nov 10, 2026 · 1 source
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Anyone running a Firefox build older than 160 on the main channel or older than 153.7 on ESR. The sources do not describe the trigger or whether a web page alone is enough to exploit it.
Not affected if firefox-160-or-later
Who cares browsers, desktop, firefox
about:support or the Help menu; versions below 160 on the main channel or below 153.7 on ESR are affected.160 and Firefox ESR 153.7, per the advisory description.Incorrect boundary conditions in the Layout: Text and Fonts component. This vulnerability was fixed in Firefox 160 and Firefox ESR 153.7.
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