CVE-2026-2800
Received Received - Intake

WebAuthn Spoofing Vulnerability in Firefox for Android

Publication date: 2026-02-24

Last updated on: 2026-04-13

Assigner: Mozilla Corporation

Description
Spoofing issue in the WebAuthn component in Firefox for Android. This vulnerability was fixed in Firefox 148 and Thunderbird 148.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-02-24
Last Modified
2026-04-13
Generated
2026-07-06
AI Q&A
2026-02-24
EPSS Evaluated
2026-07-05
NVD
CVE-2026-2800

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
mozilla firefox to 148.0 (exc)
mozilla thunderbird to 148.0 (exc)

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-290 This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This vulnerability is a spoofing issue in the WebAuthn component of Firefox for Android. It affects versions of Firefox prior to 148.

Impact Analysis

Exploitation of this vulnerability could allow an attacker to spoof authentication processes in Firefox for Android, potentially leading to unauthorized access or impersonation.

Compliance Impact

I don't know

Detection Guidance

I don't know

Mitigation Strategies

I don't know

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-2800. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart