CVE-2025-6433

CRITICAL

9.8

Descricao

If a user visited a webpage with an invalid TLS certificate, and granted an exception, the webpage was able to provide a WebAuthn challenge that the user would be prompted to complete. This is in violation of the WebAuthN spec which requires "a secure transport established without errors". This vulnerability was fixed in Firefox 140 and Thunderbird 140.

Detalhes CVE

Pontuacao CVSS v3.19.8

SeveridadeCRITICAL

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

Vetor de ataqueNETWORK

ComplexidadeLOW

Privilegios necessariosNONE

Interacao do usuarioNONE

Publicado6/24/2025

Ultima modificacao4/13/2026

Fontenvd

Avistamentos honeypot0

Produtos afetados

mozilla:firefox

Fraquezas (CWE)

CWE-295

Referencias

https://bugzilla.mozilla.org/show_bug.cgi?id=1954033(security@mozilla.org)

https://www.mozilla.org/security/advisories/mfsa2025-51/(security@mozilla.org)

https://www.mozilla.org/security/advisories/mfsa2025-54/(security@mozilla.org)

Correlacoes IOC

Sem correlacoes registradas

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