CVE-2026-16365
Received Received - Intake

Privilege Escalation in Firefox DOM Workers

Publication date: 2026-07-21

Last updated on: 2026-07-21

Assigner: Mozilla Corporation

Description
Privilege escalation in the DOM: Workers component. This vulnerability was fixed in Firefox 153.

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Meta Information

Published
2026-07-21
Last Modified
2026-07-21
Generated
2026-07-21
AI Q&A
2026-07-21
EPSS Evaluated
N/A
NVD
CVE-2026-16365
EUVD
EUVD-2026-46196

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
mozilla firefox 153

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This is a privilege escalation vulnerability in the DOM Workers component of Firefox. It allows an attacker to gain higher privileges than intended, potentially executing malicious code with elevated permissions.

Impact Analysis

If exploited, this vulnerability could allow an attacker to take control of your system, install malware, or steal sensitive data. Users of affected Firefox versions should update immediately to mitigate risk.

Mitigation Strategies

Update Firefox to version 153 or later to address the privilege escalation vulnerability in the DOM Workers component.

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