CVE-2025-55031

critical · 9.8

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.

9.8

CVSS

0.4%

EPSS (exploit prob.)

35th

EPSS percentile

2025-08-19

Published

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

Weaknesses

CWE-601

Affected products

Vendor	Product	Affected versions
mozilla	firefox	< 142.0
mozilla	firefox_focus	< 142.0

Check a specific version with /api/v1/cve/match.

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/

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2025-55031