CVE-2026-4698 in Firefox

Sumário

de VulDB • 20/05/2026

Erro de compilação JIT no Motor JavaScript: componente JIT. Esta vulnerabilidade afeta o Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149 e Thunderbird < 140.9.

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• Responsável: Mozilla
• Reservar: 24/03/2026
• Divulgação: 24/03/2026
• Moderação: aceite
• Entrada: VDB-352730
• CPE: pronto
• CWE: CWE-843 (confirmado)
• CVSS: 9.8 (NVD)
• EPSS: 0.00755
• KEV: não
• Atividades: muito baixo
• Sector: Chemical, Education, ...

Fontes

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-4698
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-4698
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-4698/