CVE-2026-2800

CRITICAL EPSS 22.3%
Published Feb 24, 20264mo ago · Modified Apr 13, 20262mo ago
9.8 CVSS 3.1
Critical
Find Similar
Published Feb 24, 2026 4mo ago
Last Modified Apr 13, 2026 2mo ago

Description

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

CVSS Details

Base Score
9.8
Exploitability
3.9
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
22.3% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-290

Affected Products 2

VendorProductVersionRange
mozillafirefox* <148.0
mozillathunderbird* <148.0

References 3

  • bugzilla.mozilla.org https://bugzilla.mozilla.org/show_bug.cgi?id=1988145
    Permissions Required
  • mozilla.org https://www.mozilla.org/security/advisories/mfsa2026-13/
    Vendor Advisory
  • mozilla.org https://www.mozilla.org/security/advisories/mfsa2026-16/
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.