CVE-2026-6759

Use-after-free in the Widget: Cocoa component

CVSS 7.5 HIGHEPSS 0.4%CWE-416

Vexday Risk Score

21Baixo

Decisão SSVC (CISA)

Track

Sem sinal de exploração → monitorar

CVSS 7.5EPSS 0.4%KEV nãoPoC —Nuclei —Metasploit —Patch —

Ciclo de vida

21 abr 2026Publicada no NVD

Recomendação: Monitorar — sem sinal de exploração no momento.

Use-after-free in the Widget: Cocoa component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Produtos afetados

Mozilla · Firefox Mozilla · Thunderbird

Referências

https://bugzilla.mozilla.org/show_bug.cgi?id=2016164 https://www.mozilla.org/security/advisories/mfsa2026-30/https://www.mozilla.org/security/advisories/mfsa2026-32/https://www.mozilla.org/security/advisories/mfsa2026-33/https://www.mozilla.org/security/advisories/mfsa2026-34/