CVE-2026-109780
Received Received - Intake

DOM Patching Bypass in Firefox

Publication date: 2026-10-13

Last updated on: 2026-10-13

Assigner: Mozilla Corporation

Description
Mitigation bypass in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 158.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-10-13
Last Modified
2026-10-13
Generated
2026-10-13
AI Q&A
2026-10-13
EPSS Evaluated
N/A
NVD
CVE-2026-109780
EUVD
EUVD-2026-98540

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
mozilla firefox 158

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-UNKNOWN

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This vulnerability is a mitigation bypass in the DOM: Core & HTML component of Firefox. It allows attackers to bypass security measures in the browser, potentially leading to unauthorized actions or data access.

Impact Analysis

If exploited, this vulnerability could allow attackers to bypass security controls in Firefox, potentially leading to data theft, unauthorized access to sensitive information, or execution of malicious code on your system.

Mitigation Strategies

Update Firefox to version 158 or later to address the DOM: Core & HTML component vulnerability.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-109780. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart