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CVE-2026-4702

NONE
Updated Mar 24, 2026
Firefox
Parameter Value
Vendor Firefox
Public PoC No

JIT miscompilation in the JavaScript Engine component. This vulnerability affects Firefox < 149 and Firefox ESR < 140.9.

References 3

https://bugzilla.mozilla.org/show_bug.cgi?id=2013560
security@mozilla.org
https://www.mozilla.org/security/advisories/mfsa2026-20/
security@mozilla.org
https://www.mozilla.org/security/advisories/mfsa2026-22/
security@mozilla.org
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