CVE-2025-10530

MEDIUM

Firefox for Android < 143.0 - Authentication Bypass by Spoofing in WebAuthn Component

Title source: llm

Spoofing issue in the WebAuthn component in Firefox for Android. This vulnerability was fixed in Firefox 143 and Thunderbird 143.

Core 3

Core References

Permissions Required

Vendor Advisory

Vendor Advisory

CVSS v3 6.5

EPSS 0.0027

EPSS Percentile 19.0%

Attack Vector NETWORK

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

Vulnrichment

Exploitation none

Automatable yes

Technical Impact partial

CWE

CWE-290

Status published

Products (4)

mozilla/firefox < 143.0

Mozilla/Firefox 143

mozilla/thunderbird < 143.0

Mozilla/Thunderbird 143

Published Sep 16, 2025

Tracked Since Feb 18, 2026