CVE-2025-55031 json
Passkey phishing within Bluetooth range
published 2025-08-19 14 mo ago modified 2026-09-30 39 d ago also EUVD-2025-25225
- cvss
- 9.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 37%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- mozilla firefox 142
- mozilla firefox_focus 142
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- total
- Assessed
- 14 mo ago
Exploit prediction
0.43% chance of exploitation in the next 30 days, higher than 37% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| CNA | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
- Mozilla Firefox for iOS
- Mozilla Focus for iOS
Classification
- Weakness
-
- CWE-601 URL Redirection to Untrusted Site
References
-
mozilla.org
/security/advisories/mfsa2025-68/
vendor-advisory
-
mozilla.org
/security/advisories/mfsa2025-69/
vendor-advisory
-
bugzilla.mozilla.org
/show_bug.cgi?id=1979499
issue-tracking, permissions-required
-
bugzilla.mozilla.org
/show_bug.cgi?id=1979804
issue-tracking, permissions-required
Sources
- CVE List CVE-2025-55031
- NVD CVE-2025-55031
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.