CVE-2026-16370

Analyzed Analyzed - Analysis Complete

Mitigation Bypass in Firefox DOM Networking

Publication date: 2026-07-21

Last updated on: 2026-07-24

Assigner: Mozilla Corporation

Description

Mitigation bypass in the DOM: Networking component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-07-21

Last Modified

2026-07-24

Generated

2026-08-11

AI Q&A

2026-07-21

EPSS Evaluated

2026-08-09

NVD

CVE-2026-16370

EUVD

EUVD-2026-46206

Affected Vendors & Products

Vendor	Product	Version / Range
mozilla	thunderbird	to 153.0 (exc)
mozilla	firefox	to 153.0.0 (exc)

Helpful Resources

Exploitability

CWE

KEV

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.

Attack-Flow Graph

Executive Summary

This is a mitigation bypass vulnerability in Firefox's DOM: Networking component. It allows attackers to bypass security measures in the browser, potentially leading to unauthorized access or data exfiltration. The issue was patched in Firefox version 153.

Impact Analysis

If exploited, this vulnerability could allow attackers to bypass security restrictions in your browser, potentially accessing sensitive data or performing unauthorized actions on websites you visit. Users should update to Firefox 153 or later to mitigate the risk.

Compliance Impact

The provided CVE data does not specify direct impacts on compliance with standards like GDPR or HIPAA. The vulnerability involves a mitigation bypass in Firefox's DOM: Networking component, which could potentially allow unauthorized access or data exfiltration. Such risks may indirectly affect compliance if exploited, but no explicit details are provided.

Mitigation Strategies

Update Firefox to version 153 or later to address the mitigation bypass in the DOM: Networking component.

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