CVE-2026-74981 in Firefox

Sumário

de MITRE • 18/08/2026

Site isolation issue in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 154 and Firefox ESR 153.1.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

• Responsável: Mozilla
• Reservar: 17/08/2026
• Divulgação: 18/08/2026
• Moderação: aceite
• Entrada: VDB-391634
• CPE: pronto
• CWE: CWE-653 (confirmado)
• CVSS: 7.3 (VulDB)
• EPSS: 0.00000
• KEV: não
• Atividades: muito baixo
• Sector: Homeoffice, Lawfirm, ...

Fontes

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-74981
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-74981
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-74981/