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CVE-2026-4698

CRITICAL mozilla NVD
CVSS Score 9.8
Severity CRITICAL
Published Mar 24, 2026
Vendor mozilla

Description

JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.

References