CVE-2025-55031

EUVD-2025-25225
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.
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ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 30%
Common Weakness Enumeration
References
https://bugzilla.mozilla.org/show_bug.cgi?id=1979499
https://bugzilla.mozilla.org/show_bug.cgi?id=1979804
https://www.mozilla.org/security/advisories/mfsa2025-68/
https://www.mozilla.org/security/advisories/mfsa2025-69/