CVE-2025-55031_CVE-2025-55031

9.8 / 10

CRITICAL

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

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 affects Firefox for iOS < 142 and Focus for iOS < 142.

Basic Information

ID CVE-2025-55031

Source mozilla

Published Aug 19, 2025 at 20:52

Modified Aug 20, 2025 at 15:17

Affected Product

Vendor Mozilla

Product Firefox for iOS

Version unspecified

Affected Versions Mozilla Firefox for iOS unspecified
Mozilla Focus for iOS unspecified

CWE Classification

CWE-601

References

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    "lastseen": "",
    "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 affects Firefox for iOS < 142 and Focus for iOS < 142.",
    "published": "2025-08-19T20:52:49.748Z",
    "modified": "2025-08-20T15:17:12.739Z",
    "type": "cve",
    "title": "CVE-2025-55031",
    "source": "mozilla",
    "references": "https://bugzilla.mozilla.org/show_bug.cgi?id=1979499\nhttps://bugzilla.mozilla.org/show_bug.cgi?id=1979804\nhttps://www.mozilla.org/security/advisories/mfsa2025-68/\nhttps://www.mozilla.org/security/advisories/mfsa2025-69/",
    "id": "CVE-2025-55031",
    "bulletinFamily": "",
    "cwe": [
        "CWE-601"
    ],
    "cvelist": null,
    "sourceData": "Mozilla Firefox for iOS unspecified\nMozilla Focus for iOS unspecified",
    "sourceHref": "",
    "cvss": {
        "score": 9.8,
        "severity": "CRITICAL",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
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            "privilegesRequired": "",
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            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Firefox for iOS",
    "version": "unspecified",
    "vendor": "Mozilla",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}