CVE-2025-55031

CriticalCVSS 9.8/10Last modified Sep 30, 2026

Description

Malicious pages could use Firefox for iOS to pass FIDO: links to the OS and trigger the hybrid passkey transport. An attacker within Bluetooth range could have used this to trick the user into using their passkey to log the attacker's computer into the target account. This vulnerability was fixed in Firefox for iOS 142 and Focus for iOS 142.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-601

Affected software

No affected versions have been published.

Timeline

Published: Aug 19, 2025
Last modified: Sep 30, 2026
NVD status: Modified

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