CVE-2025-10530
MediumCVSS 6.5Exploitation Probability (EPSS)
Low risk21th percentile - higher than 21% of all known CVEs
Summary
A spoofing issue exists in the WebAuthn component in Firefox for Android. This vulnerability was fixed in Firefox 143 and Thunderbird 143.
Risk Assessment
WebAuthn spoofing could mislead users about the origin of an authentication request, potentially leading to unauthorized account access.
Recommendation
Update Firefox for Android to version 143 or later and Thunderbird to version 143 or later.
Other vulnerabilities in Firefox for Android
See all- CVE-2026-118018Unknown
A spoofing issue exists in the Downloads component of Firefox for Android. This vulnerability was fixed in Firefox 159.
- CVE-2023-29534Critical
In Firefox and Focus for Android, techniques were discovered to obscure the fullscreen notification, which could lead to user confusion and spoofing attacks. This affects Firefox for Android and Focus for Android versions prior to 112.
- CVE-2026-100823Medium
Spoofing issue in the Downloads component in Firefox for Android. This vulnerability was fixed in Firefox 157.
- CVE-2026-92033High
Privilege escalation vulnerability in Firefox for Android. Fixed in Firefox 156.
- CVE-2026-84117High
Privilege escalation in Firefox for Android. Fixed in Firefox 155.
- CVE-2026-74975Medium
A spoofing issue exists in the Downloads component in Firefox for Android. This vulnerability was fixed in Firefox 154.
- CVE-2026-18809Medium
Information disclosure in Firefox for Android and Firefox Focus for Android. This vulnerability was fixed in Firefox 153.0.3.
- CVE-2026-16397Medium
Clickjacking vulnerability in the WebExtensions component in Firefox for Android. This issue was fixed in Firefox 153.
- CVE-2026-16373High
Vulnerability in the Privacy component in Firefox for Android. The flaw leads to information disclosure. The issue was fixed in Firefox 153.
- CVE-2026-8951Medium
A spoofing issue exists in the Toolbar component in Firefox for Android. This vulnerability was fixed in Firefox 151.
Original NVD description (English source)
Spoofing issue in the WebAuthn component in Firefox for Android. This vulnerability was fixed in Firefox 143 and Thunderbird 143.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS