VULNERABILITY INTELLIGENCE

CVE-2025-55031

CVSS score9.8 CRITICAL

EPSS probability0.43%

CISA KEVNot currently listed

Published2025-08-19

Last modified2026-09-30

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.