CVE-2025-6433

CRITICAL

9.8

Beschreibung

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.

CVE Details

CVSS v3.1 Bewertung9.8

SchweregradCRITICAL

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

AngriffsvektorNETWORK

KomplexitatLOW

Erforderliche PrivilegienNONE

BenutzerinteraktionNONE

Veroffentlicht6/24/2025

Zuletzt geandert4/13/2026

Quellenvd

Honeypot-Sichtungen0

Betroffene Produkte

mozilla:firefox

Schwachen (CWE)

CWE-295

Referenzen

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)

IOC Korrelationen

Keine Korrelationen erfasst

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