CVE-2026-2800

CRITICAL

Firefox for Android <148 - Spoofing

Title source: llm
STIX 2.1

Description

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

References (3)

Core 3

Scores

CVSS v3 9.8
EPSS 0.0031
EPSS Percentile 22.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact total

Details

CWE
CWE-290
Status published
Products (4)
mozilla/firefox < 148.0
Mozilla/Firefox 148
mozilla/thunderbird < 148.0
Mozilla/Thunderbird 148
Published Feb 24, 2026
Tracked Since Feb 24, 2026