CVE-2026-84134
Received Received - Intake

Firefox 155 and Firefox ESR 153.2 Profile Backup Component Vulnerability

Publication date: 2026-09-01

Last updated on: 2026-09-01

Assigner: Mozilla Corporation

Description
Other issue in the Profile Backup component. This vulnerability was fixed in Firefox 155 and Firefox ESR 153.2.

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Meta Information

Published
2026-09-01
Last Modified
2026-09-01
Generated
2026-09-01
AI Q&A
2026-09-01
EPSS Evaluated
N/A
NVD
CVE-2026-84134
EUVD
EUVD-2026-69082

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
mozilla firefox 155
mozilla firefox_esr 153.2

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 vulnerability is in the Profile Backup component of Firefox and Firefox ESR. It was addressed in Firefox 155 and Firefox ESR 153.2.

Impact Analysis

The impact is not specified in the provided context. Users should update to Firefox 155 or Firefox ESR 153.2 to mitigate potential risks.

Mitigation Strategies

Update Firefox to version 155 or later and Firefox ESR to version 153.2 or later to address the Profile Backup component vulnerability.

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