Vulnerability · NVD

CVE-2025-55031

CVE-2025-55031, critical severity (CVSS 9.8): 1 tracked app concerned, all fixed or indeterminable on their current version.

Severity (CVSS): 9.8
Exploitation: -
Tracked apps: 1
Still exposed: 0

Published on 2025-08-19

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.

Attack vector : Network No privileges required No user interaction

Show raw CVSS vector

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

Tracked apps referencing this CVE

For each app: the affected range, the fixing version, and where the tracked app stands today.

Firefox iOS org.mozilla.ios.Firefox

Affected <142.0 Fixed in 142.0 Latest tracked 156.1 patched

Vulnerable CPE configurations (2)

Vendor	Product	Platform	Versions	CPE 2.3 URI
mozilla	firefox iOS	iOS	<142.0	cpe:2.3:a:mozilla:firefox::::::iphone_os::*
mozilla	firefox_focus iOS	iOS	<142.0	cpe:2.3:a:mozilla:firefox_focus::::::iphone_os::*

View on NVD ↗ Advisory · www.mozilla.org

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