CVE-2026-92078
Received Received - Intake

Denial-of-Service in Firefox Security Component

Publication date: 2026-09-15

Last updated on: 2026-09-15

Assigner: Mozilla Corporation

Description
Denial-of-service in the Security component. This vulnerability was fixed in Firefox 156 and Firefox ESR 153.3.

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Meta Information

Published
2026-09-15
Last Modified
2026-09-15
Generated
2026-09-15
AI Q&A
2026-09-15
EPSS Evaluated
N/A
NVD
CVE-2026-92078
EUVD
EUVD-2026-78463

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
mozilla firefox 156
mozilla firefox_esr 153.3

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 denial-of-service vulnerability in the Security component of Firefox and Firefox ESR. It was patched in Firefox 156 and Firefox ESR 153.3.

Impact Analysis

A denial-of-service attack could cause the affected Firefox browser to crash or become unresponsive, disrupting normal use.

Mitigation Strategies

Update Firefox to version 156 or later and Firefox ESR to version 153.3 or later to address the denial-of-service vulnerability in the Security component.

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