CVE-2026-2761 in Firefox

Sumário

de VulDB • 22/06/2026

Fuga da sandbox no componente Graphics: WebRender. Esta vulnerabilidade afeta o Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148 e Thunderbird < 140.8.

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• Responsável: Mozilla
• Reservar: 19/02/2026
• Divulgação: 24/02/2026
• Moderação: aceite
• Entrada: VDB-347551
• CPE: pronto
• CWE: CWE-265 (confirmado)
• CVSS: 10.0 (NVD)
• EPSS: 0.00395
• KEV: não
• Atividades: muito baixo
• Sector: Education, Police, ...

Fontes

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-2761
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-2761
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-2761/