CVE-2025-6433

CRITICAL

9.8

Descripcion

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.

Detalles CVE

Puntuacion CVSS v3.19.8

SeveridadCRITICAL

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

Vector de ataqueNETWORK

ComplejidadLOW

Privilegios requeridosNONE

Interaccion usuarioNONE

Publicado6/24/2025

Ultima modificacion4/13/2026

Fuentenvd

Avistamientos honeypot0

Productos afectados

mozilla:firefox

Debilidades (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)

Correlaciones IOC

Sin correlaciones registradas

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