CVE-2026-12316
Undergoing Analysis Undergoing Analysis - In Progress

DOM Security Component Mitigation Bypass in Firefox

Publication date: 2026-06-16

Last updated on: 2026-06-16

Assigner: Mozilla Corporation

Description
Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 152 and Thunderbird 152.

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Meta Information

Published
2026-06-16
Last Modified
2026-06-16
Generated
2026-07-06
AI Q&A
2026-06-16
EPSS Evaluated
2026-07-05
NVD
CVE-2026-12316
EUVD
EUVD-2026-37107

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
mozilla firefox 152

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-693 The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product.

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Executive Summary

This vulnerability is a mitigation bypass in the DOM (Document Object Model) security component of Firefox. It means that a security measure intended to protect the DOM was circumvented, potentially allowing an attacker to exploit the browser in ways that should have been prevented. The issue was fixed in Firefox version 152.

Impact Analysis

Exploitation of this mitigation bypass could allow attackers to bypass security protections in the browser's DOM, potentially leading to unauthorized actions such as executing malicious scripts, accessing sensitive information, or compromising browser security. This could result in a higher risk of attacks like cross-site scripting or data theft.

Mitigation Strategies

To mitigate this vulnerability, update Firefox to version 152 or later where the issue has been fixed.

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