CVE-2026-92069

Analyzed Analyzed - Analysis Complete

DOM Navigation Spoofing in Firefox

Publication date: 2026-09-15

Last updated on: 2026-10-05

Assigner: Mozilla Corporation

Description

Spoofing issue in the DOM: Navigation component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, and Thunderbird 156.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-09-15

Last Modified

2026-10-05

Generated

2026-10-06

AI Q&A

2026-09-15

EPSS Evaluated

2026-10-05

NVD

CVE-2026-92069

EUVD

EUVD-2026-78454

Affected Vendors & Products

Vendor	Product	Version / Range
mozilla	thunderbird	From 154.0 (inc) to 156.0 (exc)
mozilla	firefox	to 153.3.0 (exc)
mozilla	firefox	From 154.0.0 (inc) to 156.0.0 (exc)
mozilla	thunderbird	to 153.3.0 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-451	The user interface (UI) does not properly represent critical information to the user, allowing the information - or its source - to be obscured or spoofed. This is often a component in phishing attacks.

Attack-Flow Graph

Executive Summary

This is a spoofing vulnerability in Firefox's DOM Navigation component. It allows an attacker to manipulate the browser's navigation display, potentially tricking users into visiting malicious sites by showing incorrect URLs in the address bar.

Detection Guidance

This vulnerability is specific to Firefox versions before 156, Firefox ESR before 153.3, and Thunderbird before 156. Detection involves checking installed versions of these applications. For Firefox, run 'firefox --version' or check 'about:support' in the browser. For Thunderbird, run 'thunderbird --version'. If versions are below the patched releases, the system is vulnerable.

Impact Analysis

An attacker could exploit this to deceive you into thinking you're on a trusted website when you're actually on a malicious one. This could lead to phishing attacks, credential theft, or malware downloads if you interact with the fake interface.

Mitigation Strategies

Update Firefox to version 156 or later and Firefox ESR to version 153.3 or later to address the DOM Navigation spoofing issue.

Hi! I’m here to help you understand CVE-2026-92069. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70