BaseFortify

Publication date: 2025-12-09

Last updated on: 2026-04-13

Assigner: Mozilla Corporation

Description

Spoofing issue in the Downloads Panel component. This vulnerability was fixed in Firefox 146, Thunderbird 146, Firefox ESR 140.7, and Thunderbird 140.7.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2025-12-09

Last Modified

2026-04-13

Generated

2026-07-06

AI Q&A

2025-12-09

EPSS Evaluated

2026-07-05

NVD

CVE-2025-14327

Affected Vendors & Products

Vendor	Product	Version / Range
mozilla	firefox	to 146.0 (exc)
mozilla	thunderbird	to 146.0 (exc)

Helpful Resources

Exploitability

CWE

KEV

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

Executive Summary

This vulnerability is a spoofing issue in the Downloads Panel component of Firefox versions prior to 146. It allows an attacker to potentially deceive users by presenting misleading information in the Downloads Panel.

Impact Analysis

The impact of this vulnerability could include users being tricked into trusting malicious downloads or misinterpreting the status of their downloads, which may lead to security risks such as executing harmful files.

Mitigation Strategies

To mitigate this vulnerability, update Firefox to version 146 or later, as the issue affects Firefox versions prior to 146.

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