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Cve-2026-4723

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Mozilla Firefox and Thunderbird Use-After-Free Vulnerability (CVE-2026-4723)

A use-after-free vulnerability, CVE-2026-4723, in the JavaScript Engine of Mozilla Firefox and Thunderbird before version 149 could allow arbitrary code execution if successfully exploited by an attacker.

use-after-free firefox thunderbird javascript cve-2026-4723
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